tag:blogger.com,1999:blog-8228188926799689162024-02-08T08:12:32.975-08:00factori| DO | TURBIDITY | CONDUCTIVITY METER| BOD COD | ORP METERturbidity meter hach,turbidity meter online,turbidity meter hanna,turbidity meter adalah ,turbidity meter lutron tu 2016,jual turbidity meter,harga turbidity meter,turbidity meter hach 2100n
turbidity meter jakarta,jual turbidity meter lutron,jual turbidity meter hach,Raja Karbon Cicadashttp://www.blogger.com/profile/12241203320818745879noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-822818892679968916.post-39551269146376969522015-09-17T21:27:00.001-07:002015-09-17T21:27:04.777-07:00CARA MENGOPERASIONALKAN ALAT TURBIDIMETER<!--[if gte mso 9]><xml>
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<b><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">CARA MENGOPERASIONALKAN ALAT
TURBIDIMETER</span></b></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; text-align: justify; text-justify: inter-ideograph;">
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><span style="mso-tab-count: 1;"> </span>Turbidimeter
merupakan sifat optik akibat dispersi sinar dan dapat dinyatakan sebagai
perbandingan cahaya yang dipantulkan terhadap cahaya yang dating. Intensitas
cahaya yang dipantulkan oleh suatu suspensi merupakan fungsi konsentrasi jika
kondisi-kondisi lainnya konstan. Turbidimeter merupakan salah satu alat yang
berfungsi untuk mengetahui atau mengukur tingkat kekeruhan air dalam sampel.
Jenis – jenis turbidimeter antara lain berbentuk bench top, on-line instruments
dan portable. Pada bagian <span style="mso-spacerun: yes;"> </span>alat
turbidimeter yaitu terdiri dari tombol standar angka kekeruhan, tempat sampel (untuk
meletakkan botol sampel yang berisi sampel), tombol zero, tombol test, tombol
Kal (untuk mengakses kalibrasi modus dan tetap aktif selama kalibrasi),
display, botol standar, dan botol <span style="color: black;">sampel. </span></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; text-align: justify; text-justify: inter-ideograph;">
<span style="color: black; font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><span style="mso-tab-count: 1;"> </span>Prinsip
</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">umum dari alat turbidimeter adalah
sinar yang datang mengenai suatu partikel ada yang diteruskan dan ada yang
dipantulkan, maka sinar yang diteruskan digunakan sebagai dasar pengukuran. Alat
akan memancarkan cahaya pada media atau sampel, dan cahaya tersebut akan
diserap, dipantulkan atau menembus media tersebut. Cahaya yang menembus media
akan diukur dan ditransfer ke dalam bentuk angka. Berikut tahapan cara
mengoperasionalkan alat turbidimeter:</span></div>
<ul style="margin-top: 0cm;" type="square">
<li class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-list: l1 level1 lfo1; text-align: justify; text-justify: inter-ideograph;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Botol sampel di lap dengan kain
lembut untuk membersihkan.</span></li>
<li class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-list: l1 level1 lfo1; text-align: justify; text-justify: inter-ideograph;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Tekan tombol I/O. instrument
akan terbuka kemudian tempatkan instrument pada suatu permukaan
datar(kokoh) dan jangan memegang instrument ketika sedang melakukan
pengukuran.</span></li>
<li class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-list: l1 level1 lfo1; text-align: justify; text-justify: inter-ideograph;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Masukkan cell sampel dalam
ruang cell dengan mengorientasikan tanda garis pada bagian depan ruang
cell.</span></li>
<li class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-list: l1 level1 lfo1; text-align: justify; text-justify: inter-ideograph;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Pilih daerah/range secara
manual atau otomatis dengan menekan tombol RANGE.</span></li>
<li class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-list: l1 level1 lfo1; text-align: justify; text-justify: inter-ideograph;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Memilih mode sinyal rata-rata
dengan menekan tombol SIGNAL AVERAGE. Dan monitor akan menunjukkan SIG AVG
ketika instrument sedang menggunkan mode sinyal rata-rata. </span></li>
<li class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-list: l1 level1 lfo1; text-align: justify; text-justify: inter-ideograph;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Tekan READ. Monitor akan
menunjukkan NTU, kemudian angka turbiditas akan muncul dalam NTU. Catat
angka turbiditas setelah symbol lampu padam. </span></li>
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<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Adapun prosedur kalibrasi alat, harus dilakukan pemanasan
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<li class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-list: l0 level1 lfo2; text-align: justify; text-justify: inter-ideograph;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Gunakan alkohol dan kain halus
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<li class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-list: l0 level1 lfo2; text-align: justify; text-justify: inter-ideograph;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Diletakkan di tempat yang rata,
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turbidimeter digunakan untuk menentukan tingkat kekeruhan dari sampel, terlebih
dahulu turbidimeter dikalibrasi dengan menggunakan sampel standar dari turbiditans
/ kekeruhan 0,01 NTU sampai 7500 NTU. Hal ini dilakukan untuk menstandarkan
kembali alat tersebut.</span><span style="font-family: "Times New Roman","serif";"></span></div>
Raja Karbon Cicadashttp://www.blogger.com/profile/12241203320818745879noreply@blogger.com0tag:blogger.com,1999:blog-822818892679968916.post-28194389581052193922015-09-17T21:26:00.000-07:002015-09-17T21:26:03.280-07:00APLIKASI TURBIDITI METER UNTUK PENGOLAHAN AIR DI PLTU<!--[if gte mso 9]><xml>
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<b><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%;">APLIKASI
TURBIDITI METER UNTUK PENGOLAHAN AIR DI PLTU</span></b></div>
<div class="MsoNormal" style="line-height: 150%; text-align: justify; text-justify: inter-ideograph;">
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%;"><span style="mso-tab-count: 1;"> </span>Secara
alami air mengandung berbagai jenis zat kimia dan material – material solid
lainnya. Material – material tersebut akan memengaruhi proses yang akan
digunakan di PLTU (Pembangkit Listrik Tenaga Uap) untuk mengolah air lebih
lanjut sehingga dapat terjaga kualitasnya. PLTU yang menggunakan air tanah
mempunyai treatment air yang berbeda dengan PLTU yang mengambil air dari laut. Untuk
mengetahui kadar kekeruhan (<i>turbidity</i>) yang terkandung di dalam air
dapat menggunakan alat ukur turbiditi meter. Kekeruhan pada air memengaruhi
tampilan kejernihan air. Pada sistem proses <i>treatment</i> air di PLTU dengan
adanya kekeruhan tersebut dapat mengakibatkan terbentuknya deposit (kerak) dan
sangat memengaruhi proses <i>treatment</i>-nya. Tutbiditi merupakan derajat
kejernihan di dalam air yang disebabkan oleh bahan – bahan yang melayang,</span></div>
<div class="MsoNormal" style="line-height: 150%; text-align: justify; text-justify: inter-ideograph;">
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%;"><span style="mso-tab-count: 1;"> </span>Pengukuran
kekeruhan di PLTU dapat diukur menggunakan alat turbiditi meter dengan sistem
pengontrolan automatis maupun manual. Alat ukur yang digunakan umumnya
mempunyai presisi yang tinggi yang berdasarkan ISO 7027 dengan rentang
pengukuran 0.0000 sampai 200.00 FNU. Untuk alat pengontrolan manual (<i>handled</i>)
sampel cukup diukur ditempat lokasi pengambilan yang kemudian diukur
kekeruhannya. Namun untuk memudahkan peninjauan kekeruhan air di PLTU
diperlukan pengontrolan secara automatis. Metode pengukuran automatis ini
sangat kompleks yang dilengkapi dengan sensor canggih dan sistem samping panel
yang modern. Kelengkapan alat ukut turbiditi meter automatis ini disebut dengan
<i>monitoring turbidity measurement. </i>Contoh salah satu alatnya adalah
Monitor AMI Turbiwell 7027 made in Swiss. </span></div>
<div class="MsoNormal" style="line-height: 150%; text-align: justify; text-justify: inter-ideograph;">
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%;"><span style="mso-tab-count: 1;"> </span>Sampel
yang akan diukut menggunakan alat ini harus dalam kondisi laju alirnya pada
rentang 20-60 L/jam pada suhu 40 <sup>o</sup>C. Selain itu, alat monitor AMI
Turbiwell 7027 dapat mengkalibrasi secara automatis, sehingga memudahkan
penggunaan alat dalam mengukur kakeruhan pada pengolahan air di PLTU. </span></div>
Raja Karbon Cicadashttp://www.blogger.com/profile/12241203320818745879noreply@blogger.com0tag:blogger.com,1999:blog-822818892679968916.post-14757338827825279872015-09-17T21:25:00.002-07:002015-09-17T21:25:27.816-07:00ANALISIS OKSIGEN TERLARUT BAGIAN II | DISSOLVED OXYGEN METER| JUAL DO METER<!--[if gte mso 9]><xml>
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<b><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">ANALISIS OKSIGEN TERLARUT BAGIAN II</span></b></div>
<div class="MsoNormalCxSpMiddle" style="line-height: 150%; margin-top: 12.0pt; mso-add-space: auto; text-align: justify; text-indent: 36.0pt; text-justify: inter-ideograph;">
<span lang="SV" style="color: #231f20; font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";">Kelemahan
metode <i>Winkler</i> dalam menganalisis oksigen terlarut (DO) adalah dimana</span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> <span style="color: #231f20;">dengan cara <i>Winkler</i> penambahan indikator amylum
harus dilakukan pada saat mendekati titik akhir titrasi agar amilum tidak
membungkus iod karena akan menyebabkan amilum sukar bereaksi untuk kembali ke
senyawa semula. Proses titrasi harus dilakukan sesegera mungkin, hal ini
disebabkan karena I<sub>2</sub> mudah menguap. Dan ada yang harus diperhatikan
dari titrasi iodometri yang biasa dapat menjadi kesalahan pada titrasi
iodometri yaitu penguapan I<sub>2</sub>, oksidasi udara dan adsorpsi I<sub>2</sub>
oleh endapan.</span></span></div>
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<br /></div>
<div class="MsoNormalCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; tab-stops: 14.2pt; text-align: justify; text-justify: inter-ideograph;">
<b><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Metoda
elektrokimia </span></b></div>
<div class="MsoNormalCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; text-align: justify; text-indent: 36.0pt; text-justify: inter-ideograph;">
<span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">Cara penentuan oksigen terlarut dengan </span><span lang="NO-NYN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: NO-NYN; mso-fareast-font-family: "Times New Roman";">metoda
elektrokimia adalah cara langsung untuk </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">menentukan oksigen terlarut dengan alat
DO meter. Prinsip kerjanya adalah menggunakan probe oksigen yang terdiri dari
katoda dan anoda yang direndam dalam larutan elektrolit.<span style="color: white;"> </span>Pada alat DO meter, probe ini biasanya</span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">menggunakan
katoda perak (Ag) dan anoda</span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> t</span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">imbal (Pb).
Secara keseluruhan, elektroda ini dilapisi dengan membran plastik yang bersifat
semi permeable terhadap oksigen. </span><span lang="PT-BR" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PT-BR; mso-fareast-font-family: "Times New Roman";">Reaksi kimia </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">yang akan
terjadi adalah</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">:</span></div>
<div class="MsoNormalCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; text-align: justify; text-indent: 36.0pt; text-justify: inter-ideograph;">
<br /></div>
<div align="center" class="MsoNormalCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; text-align: center; text-indent: 36.0pt;">
<span lang="PT-BR" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PT-BR; mso-fareast-font-family: "Times New Roman";">Katoda : O<sub>2</sub> + 2 H<sub>2</sub>O + 4e<span style="mso-spacerun: yes;"> </span></span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";">==></span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PT-BR; mso-fareast-font-family: "Times New Roman";"> </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">4 HO</span><sup><span lang="PT-BR" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PT-BR; mso-fareast-font-family: "Times New Roman";">-</span></sup><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"></span></div>
<div align="center" class="MsoNormalCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; text-align: center; text-indent: 36.0pt;">
<span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">Anoda : Pb + 2
HO</span><sup><span lang="PT-BR" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PT-BR; mso-fareast-font-family: "Times New Roman";">-</span></sup><span lang="PT-BR" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PT-BR; mso-fareast-font-family: "Times New Roman";"> </span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";">==> </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">PbO + H</span><sub><span lang="PT-BR" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PT-BR; mso-fareast-font-family: "Times New Roman";">2</span></sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">O</span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";"> + 2e</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"></span></div>
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<br /></div>
<div class="MsoNormalCxSpLast" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; text-align: justify; text-indent: 36.0pt; text-justify: inter-ideograph;">
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Adapun
cara untuk menanggulangi jika kelebihan kadar oksigen terlarut adalah sebagai
berikut:</span><span lang="PT-BR" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PT-BR; mso-fareast-font-family: "Times New Roman";"></span></div>
<div class="MsoListParagraphCxSpFirst" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; mso-list: l1 level1 lfo1; tab-stops: 14.2pt; text-align: justify; text-indent: -18.0pt; text-justify: inter-ideograph;">
<span style="font-family: Wingdings; font-size: 12.0pt; line-height: 150%; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;"><span style="mso-list: Ignore;">§<span style="font: 7.0pt "Times New Roman";"> </span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Menaikkan suhu/temperatur air,
dimana jika temperatur naik maka kadar oksigen terlarut akan menurun.</span></div>
<div class="MsoListParagraphCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; mso-list: l1 level1 lfo1; tab-stops: 14.2pt; text-align: justify; text-indent: -18.0pt; text-justify: inter-ideograph;">
<span style="font-family: Wingdings; font-size: 12.0pt; line-height: 150%; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;"><span style="mso-list: Ignore;">§<span style="font: 7.0pt "Times New Roman";"> </span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Menambah kedalaman air, dimana
semakin dalam air tersebut maka semakin kadar oksigen terlarut akan menurun
karena proses fotosintesis semakin berkurang dan kadar oksigen digunakan untuk
pernapasan dan oksidasi bahan – bahan organik<span style="mso-spacerun: yes;">
</span>dan anorganik. </span></div>
<div class="MsoListParagraphCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin: 0cm; mso-add-space: auto; tab-stops: 14.2pt; text-align: justify; text-justify: inter-ideograph;">
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Sedangkan
cara untuk menanggulangi jika kekurangan kadar oksigen terlarut adalah dengan
cara :</span></div>
<div class="MsoListParagraphCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; mso-list: l0 level1 lfo2; tab-stops: 21.3pt; text-align: justify; text-indent: -18.0pt; text-justify: inter-ideograph;">
<span style="font-family: Wingdings; font-size: 12.0pt; line-height: 150%; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;"><span style="mso-list: Ignore;">§<span style="font: 7.0pt "Times New Roman";"> </span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Menurunkan suhu/temperatur air,
dimana jika temperatur turun maka kadar oksigen terlarut akan naik.</span></div>
<div class="MsoListParagraphCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; mso-list: l0 level1 lfo2; tab-stops: 21.3pt; text-align: justify; text-indent: -18.0pt; text-justify: inter-ideograph;">
<span style="font-family: Wingdings; font-size: 12.0pt; line-height: 150%; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;"><span style="mso-list: Ignore;">§<span style="font: 7.0pt "Times New Roman";"> </span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Mengurangi kedalaman air, dimana
semakin dalam air tersebut maka semakin kadar oksigen terlarut akan naik karena
proses fotosintesis semakin meningkat.</span></div>
<div class="MsoListParagraphCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; mso-list: l0 level1 lfo2; tab-stops: 21.3pt; text-align: justify; text-indent: -18.0pt; text-justify: inter-ideograph;">
<span style="font-family: Wingdings; font-size: 12.0pt; line-height: 150%; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;"><span style="mso-list: Ignore;">§<span style="font: 7.0pt "Times New Roman";"> </span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Mengurangi bahan – bahan organik
dalam air, karena jika banyak terdapat bahan organik dalam air maka kadar
oksigen terlarutnya rendah. </span></div>
<div class="MsoListParagraphCxSpLast" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; mso-list: l0 level1 lfo2; tab-stops: 21.3pt; text-align: justify; text-indent: -18.0pt; text-justify: inter-ideograph;">
<span style="font-family: Wingdings; font-size: 12.0pt; line-height: 150%; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;"><span style="mso-list: Ignore;">§<span style="font: 7.0pt "Times New Roman";"> </span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Diusahakan agar air tersebut
mengalir.</span></div>
<div class="MsoNormal">
<br /></div>
Raja Karbon Cicadashttp://www.blogger.com/profile/12241203320818745879noreply@blogger.com0tag:blogger.com,1999:blog-822818892679968916.post-31164595250400144012015-09-17T21:24:00.001-07:002015-09-17T21:24:33.780-07:00ANALISIS OKSIGEN TERLARUT BAGIAN I | DISSOLVED OXYGEN METER | DO METER| TSS METER| ORP METER| <!--[if gte mso 9]><xml>
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<b><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">ANALISIS OKSIGEN TERLARUT BAGIAN I</span></b></div>
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<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><span style="mso-tab-count: 1;"> </span>Analisis
oksigen terlarut dapat ditentukan dengan 2 macam cara, yaitu :</span></div>
<div class="MsoNormalCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; tab-stops: 14.2pt; text-align: justify; text-justify: inter-ideograph;">
<b><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Metoda
titrasi dengan cara <i>Winkler</i></span></b></div>
<div class="MsoNormalCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; text-align: justify; text-indent: 36.0pt; text-justify: inter-ideograph;">
<span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">Prinsipnya</span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> dengan menggunakan titrasi
iodometri.<span style="mso-spacerun: yes;"> </span>Sampel </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">yang akan
dianalisis terlebih dahulu</span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> ditambahkan larutan MnCl<sub>2</sub>
den Na0H - KI, sehingga akan terjadi endapan Mn0<sub>2</sub>. Dengan
menambahkan H<sub>2</sub>SO<sub>4</sub> atan HCl maka endapan </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">yang terjadi
akan larut kembali dan juga akan</span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">membebaskan molekul iodium (I</span><sub><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";">2</span></sub><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">) yang ekivalen</span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> dengan oksigen
terlarut. Iodium yang </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">dibebaskan ini selanjutnya</span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">dititrasi
dengan</span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> larutan standar natrium tiosulfat (Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub>)
dan menggunakan indikator larutan amilum (kanji). </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">Reaksi kimia
yang terjadi dapat dirumuskan</span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> :</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"></span></div>
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<span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";">MnCI<sub>2</sub>
+ NaOH<span style="mso-spacerun: yes;"> </span>==> Mn(OH)<sub>2</sub> + 2
NaCI</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"></span></div>
<div align="center" class="MsoNormalCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; text-align: center; text-indent: 36.0pt;">
<span lang="PT-BR" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PT-BR; mso-fareast-font-family: "Times New Roman";">2 Mn(OH)<sub>2</sub> + O<sub>2</sub> </span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";">==></span><span lang="PT-BR" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PT-BR; mso-fareast-font-family: "Times New Roman";"><span style="mso-spacerun: yes;"> </span>2 MnO<sub>2</sub> + 2 H<sub>2</sub>0</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"></span></div>
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<span lang="PL" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PL; mso-fareast-font-family: "Times New Roman";">MnO<sub>2</sub>
+ 2 KI + 2 H<sub>2</sub>O </span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";">==></span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"> </span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><span style="mso-spacerun: yes;"> </span></span><span lang="PL" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PL; mso-fareast-font-family: "Times New Roman";">Mn(OH)<sub>2</sub>
+ I<sub>2</sub> + 2 KOH</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"></span></div>
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<span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">I</span><sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">2</span></sub><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";"> + 2 Na</span><sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">2</span></sub><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">S</span><sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">2</span></sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">O<sub>3</sub></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";"> </span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";">==></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><span style="mso-spacerun: yes;">
</span></span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">Na</span><sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">2</span></sub><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">S</span><sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">4</span></sub><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">O</span><sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">6</span></sub><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";"> + 2 NaI</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; text-align: justify; text-justify: inter-ideograph;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Metode Winkler</span></b></div>
<div class="MsoNormalCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; text-align: justify; text-indent: 36.0pt; text-justify: inter-ideograph;">
<span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">Prinsipnya</span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> dengan menggunakan titrasi
iodometri.<span style="mso-spacerun: yes;"> </span>Sampel </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">yang akan
dianalisis terlebih dahulu</span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> ditambahkan larutan MnCl<sub>2</sub>
den Na0H - KI, sehingga akan terjadi endapan Mn0<sub>2</sub>. Dengan menambahkan
H<sub>2</sub>SO<sub>4</sub> atan HCl maka endapan </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">yang terjadi
akan larut kembali dan juga akan</span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">membebaskan molekul iodium (I</span><sub><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";">2</span></sub><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">) yang ekivalen</span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> dengan oksigen
terlarut. Iodium yang </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">dibebaskan ini selanjutnya</span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">dititrasi
dengan</span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> larutan standar natrium tiosulfat (Na<sub>2</sub>S<sub>2</sub>0<sub>3</sub>)
dan menggunakan indikator larutan amilum (kanji). </span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">Reaksi kimia
yang terjadi dapat dirumuskan</span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";"> :</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"></span></div>
<div align="center" class="MsoNormalCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; text-align: center; text-indent: 36.0pt;">
<span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";">MnCI<sub>2</sub>
+ NaOH<span style="mso-spacerun: yes;"> </span>==><span style="mso-spacerun: yes;"> </span>Mn(OH)<sub>2</sub> + 2 NaCI</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"></span></div>
<div align="center" class="MsoNormalCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; text-align: center; text-indent: 36.0pt;">
<span lang="PT-BR" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PT-BR; mso-fareast-font-family: "Times New Roman";">Mn(OH)<sub>2</sub> + O<sub>2</sub> </span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";">==></span><span lang="PT-BR" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PT-BR; mso-fareast-font-family: "Times New Roman";"><span style="mso-spacerun: yes;"> </span>2 MnO<sub>2</sub> + 2 H<sub>2</sub>0</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"></span></div>
<div align="center" class="MsoNormalCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; text-align: center; text-indent: 36.0pt;">
<span lang="PL" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PL; mso-fareast-font-family: "Times New Roman";">MnO<sub>2</sub>
+ 2 KI + 2 H<sub>2</sub>O </span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";">==></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><span style="mso-spacerun: yes;"> </span></span><span lang="PL" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: PL; mso-fareast-font-family: "Times New Roman";">Mn(OH)<sub>2</sub>
+ I<sub>2</sub> + 2 KOH</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"></span></div>
<div align="center" class="MsoNormalCxSpMiddle" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; text-align: center; text-indent: 36.0pt;">
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">\</span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">I</span><sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">2</span></sub><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";"> + 2 Na</span><sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">2</span></sub><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">S</span><sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">2</span></sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">O<sub>3</sub></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";"> </span><span lang="SV" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";">==></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><span style="mso-spacerun: yes;">
</span></span><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">Na</span><sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">2</span></sub><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">S</span><sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">4</span></sub><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";">O</span><sub><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">6</span></sub><span lang="IN" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: IN; mso-fareast-font-family: "Times New Roman";"> + 2 NaI</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"></span></div>
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<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Kelebihan dan Kelemahan Metode
Winkler</span></b></div>
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<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";">Kelebihan
Metode Winkler dalam menganalisis oksigen terlarut (DO) adalah dimana <span style="color: #231f20;">dengan cara titrasi berdasarkan metoda WINKLER lebih
analitis, teliti dan akurat<span style="mso-spacerun: yes;"> </span>apabila
dibandingkan dengan cara alat DO meter. Hal yang perlu diperhatikan dala
titrasi iodometri ialah penentuan titik akhir titrasinya, standarisasi larutan
tio dan penambahan indikator amilumnya. Dengan mengikuti prosedur yang tepat
dan standarisasi tio secara analitis, akan diperoleh hasil penentuan oksigen terlarut
yang lebih akurat. Sedangkan cara<span style="mso-spacerun: yes;"> </span>DO
meter, harus diperhatikan suhu dan salinitas sampel yang akan diperiksa.
Peranan suhu dan salinitas ini sangat vital terhadap akurasi penentuan oksigen
terlarut dengan cara DO meter. Disamping itu, sebagaimana lazimnya alat yang
digital, peranan kalibrasi alat sangat menentukan akurasinya hasil penentuan.
Berdasarkan pengalaman di lapangan, penentuan oksigen terlarut dengan cara
titrasi lebih dianjurkan untuk mendapatkan hasil yang lebih akurat. </span></span><span lang="SV" style="color: #231f20; font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: SV; mso-fareast-font-family: "Times New Roman";">Alat
DO meter masih dianjurkan jika sifat penentuannya hanya bersifat kisaran.</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"></span></div>
Raja Karbon Cicadashttp://www.blogger.com/profile/12241203320818745879noreply@blogger.com0