PENGGUNAAN I2 SEBAGAI MEDIATOR PADA ANALISIS ASAM ASKORBAT SECARA AMPEROMETRI

New amperometric method using I2 as mediator for ascorbic acid analysis on platinum electrode has been developed. This method is based on oxidation of ascorbic acid by I2, resulting in dehydroascorbic acid and I-. The I- ion which is formed then oxidized on platinum electrode. The calibration plo...

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Main Author: Lesmana, Yoga
Format: Final Project
Language:Indonesia
Subjects:
Online Access:https://digilib.itb.ac.id/gdl/view/71712
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Institution: Institut Teknologi Bandung
Language: Indonesia
id id-itb.:71712
spelling id-itb.:717122023-02-21T13:23:41ZPENGGUNAAN I2 SEBAGAI MEDIATOR PADA ANALISIS ASAM ASKORBAT SECARA AMPEROMETRI Lesmana, Yoga Kimia Indonesia Final Project New amperometric INSTITUT TEKNOLOGI BANDUNG https://digilib.itb.ac.id/gdl/view/71712 New amperometric method using I2 as mediator for ascorbic acid analysis on platinum electrode has been developed. This method is based on oxidation of ascorbic acid by I2, resulting in dehydroascorbic acid and I-. The I- ion which is formed then oxidized on platinum electrode. The calibration plot in the concentration range of 0.01 – 8 mM showing good linearity with detection limit of 3.43 × 10-6 M. Application of this method to analyze ascorbic acid in vitamin C tablet, and healthy drink samples showing good results. On the other hand, analysis accuracy of multivitamine sample is low. text
institution Institut Teknologi Bandung
building Institut Teknologi Bandung Library
continent Asia
country Indonesia
Indonesia
content_provider Institut Teknologi Bandung
collection Digital ITB
language Indonesia
topic Kimia
spellingShingle Kimia
Lesmana, Yoga
PENGGUNAAN I2 SEBAGAI MEDIATOR PADA ANALISIS ASAM ASKORBAT SECARA AMPEROMETRI
description New amperometric method using I2 as mediator for ascorbic acid analysis on platinum electrode has been developed. This method is based on oxidation of ascorbic acid by I2, resulting in dehydroascorbic acid and I-. The I- ion which is formed then oxidized on platinum electrode. The calibration plot in the concentration range of 0.01 – 8 mM showing good linearity with detection limit of 3.43 × 10-6 M. Application of this method to analyze ascorbic acid in vitamin C tablet, and healthy drink samples showing good results. On the other hand, analysis accuracy of multivitamine sample is low.
format Final Project
author Lesmana, Yoga
author_facet Lesmana, Yoga
author_sort Lesmana, Yoga
title PENGGUNAAN I2 SEBAGAI MEDIATOR PADA ANALISIS ASAM ASKORBAT SECARA AMPEROMETRI
title_short PENGGUNAAN I2 SEBAGAI MEDIATOR PADA ANALISIS ASAM ASKORBAT SECARA AMPEROMETRI
title_full PENGGUNAAN I2 SEBAGAI MEDIATOR PADA ANALISIS ASAM ASKORBAT SECARA AMPEROMETRI
title_fullStr PENGGUNAAN I2 SEBAGAI MEDIATOR PADA ANALISIS ASAM ASKORBAT SECARA AMPEROMETRI
title_full_unstemmed PENGGUNAAN I2 SEBAGAI MEDIATOR PADA ANALISIS ASAM ASKORBAT SECARA AMPEROMETRI
title_sort penggunaan i2 sebagai mediator pada analisis asam askorbat secara amperometri
url https://digilib.itb.ac.id/gdl/view/71712
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