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Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: akidah722 on July 11, 2006, 11:19:36 PM

Title: about polarographic in determine vitamin C
Post by: akidah722 on July 11, 2006, 11:19:36 PM

Any one can help about this experiment by using polarographic to determine ascorbic acid (vit C) in fruit juice?
is urgent !! thank .

Title: Re: about polarographic in determine vitamin C
Post by: chiralic on July 13, 2006, 06:35:25 AM

Hello akidah722:

Just searching on GOOGLE I found this information:

F. Belal. Simultaneous polarographic determination of ascorbic acid and dipyrone in pharmaceutical preparations.Electroanalysis Volume 4, Issue 5, 1992. Pages 589-593
(If you have access to this journal of Wiley)

Also check theses:
- http://www.laboratorytalk.com/news/mea/mea353.html

- On Metrohm company have a section with Reprints. There you'll find a paper title:
  Determination of ascorbic acid (vitamin C) and its compounds (Application Bulletin No No. 98/3 e)
  To download this file, just register (free)
  http://www.metrohm.com/infocenter/applications/?

- On this link of a journal you'll find a article titled:
  Applications of Voltammetry to Determine Vitamin C in Apple Juice
  http://www.food.actapol.net/pub/1_2_2005.pdf

- On this link you'll find info about Polarographic Determinarion of Vitamin C:
  Vitamin C Concentrations in Dietary Sources and Body Fluids
  http://www.adinstruments.com/downloads/contributions/Vitamin_C_Concentration.pdf?template=teaching
 
Regards,

Chiralic

Title: Re: about polarographic in determine vitamin C
Post by: akidah722 on July 15, 2006, 12:48:07 AM

thank you very much  :D