A new sensitive method for the microdetermination of ascorbic acid. | [Journal of Chemical Society of Pakistan • 1990]

Author(s):

1. M. I. Farooqui: Institute of Chemistry, University of Punjab, Lahore, Pakistan

2. Jamil Anwar: Institute of Chemistry, University of Punjab, Lahore, Pakistan

3. Abdullah Khan: Institute of Chemistry, University of Punjab, Lahore, Pakistan

4. Rozina M. Ali: Institute of Chemistry, University of Punjab, Lahore, Pakistan

5. Razi Mahmood: Institute of Geology, Punjab University, Lahore, Pakistan

Abstract:

An improved spectrophotometric procedure is described for the determination of micro levels of ascorbic acid. The procedure is based on the reduction of copper(II) to copper(I) which gives stable orange coloured complex with neocuproine. This complex was further reacted with perchlorate ions to get the [Cu(l)neocuproine) [perchlorate] ion-associate complex, which was extracted in ethylacetate and absorbance was measured at 456 nm.

Page(s): 333-336

DOI: DOI not available

Published: Journal: Journal of Chemical Society of Pakistan, Volume: 12, Issue: 4, Year: 1990

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