Flow-Injection Spectrophotometric Determination of Cysteine in Biologically Active Dietary Supplements
- Authors: Petrova A.V.1, Ishimatsu R.2, Nakano K.2, Imato T.2, Vishnikin A.B.3, Moskvin L.N.1, Bulatov A.V.1
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Affiliations:
- Institute of Chemistry
- Faculty of Applied Chemistry
- Oles Honchar Dnepropetrovsk National University
- Issue: Vol 71, No 2 (2016)
- Pages: 172-178
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/181494
- DOI: https://doi.org/10.1134/S1061934816020118
- ID: 181494
Cite item
Abstract
A procedure is developed for the flow-injection spectrophotometric determination of cysteine in dietary supplements based on the formation of a reduced phosphomolybdic complex by the analyte in mixing a sample solution with a solution of ammonium 18-molybdophosphate. For the flow-injection determination of cysteine, a polymethyl methacrylate chip is fabricated, in the channels of which the analytical form was obtained and detected. The detection limit for cysteine is 3 × 10–6 M and the throughput is 240 determinations per hour. The procedure was tested in the analysis of different samples of dietary supplements; the results obtained were verified by HPLC.
About the authors
A. V. Petrova
Institute of Chemistry
Author for correspondence.
Email: petrovastacy@gmail.com
Russian Federation, Universitetskii pr. 26, Petrodvorets, St. Petersburg, 198504
R. Ishimatsu
Faculty of Applied Chemistry
Email: petrovastacy@gmail.com
Japan, Motooka 744, Nishi-ku, Fukuoka, 819-0395
K. Nakano
Faculty of Applied Chemistry
Email: petrovastacy@gmail.com
Japan, Motooka 744, Nishi-ku, Fukuoka, 819-0395
T. Imato
Faculty of Applied Chemistry
Email: petrovastacy@gmail.com
Japan, Motooka 744, Nishi-ku, Fukuoka, 819-0395
A. B. Vishnikin
Oles Honchar Dnepropetrovsk National University
Email: petrovastacy@gmail.com
Ukraine, ul. Gagarina 72, Dnepropetrovsk, 49010
L. N. Moskvin
Institute of Chemistry
Email: petrovastacy@gmail.com
Russian Federation, Universitetskii pr. 26, Petrodvorets, St. Petersburg, 198504
A. V. Bulatov
Institute of Chemistry
Email: petrovastacy@gmail.com
Russian Federation, Universitetskii pr. 26, Petrodvorets, St. Petersburg, 198504
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