Determination of vitamin C by flow injection analysis
- 1 January 1986
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 111 (2) , 163-166
- https://doi.org/10.1039/an9861100163
Abstract
A photometric procedure for the determination of vitamin C using chloramine T by two flow injection analysis (FIA) methods is described. The first is in the presence of potassium iodide-starch solution using the normal FIA technique (linear determination range: 15–150 µg ml–1, RSD ±0.97% and sampling frequency 90 samples h–1) and the second is in the presence of potassium bromide-methyl red solution using an FIA titration (linear determination range: 0.5–1000 µg ml–1, RSD ±0.82% and a sampling frequency of 30 samples h–1). The two methods are compared with each other and with a conventional titration procedure.Keywords
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