Scientific journal
Название журнала на английском
ISSN 2500-0802
ПИ №ФС77-61154

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JOINT DEFINITION OF WATER-SOLUBLE VITAMINS GROUPS B AND C

Deryabina V.I. 1 Mikheeva E.V. 1 Slepchenko G.B. 1 Shchukina T.I. 1
1 National Research Tomsk Polytechnic University
Simultaneous voltammetric determination of water soluble vitamins groups B and C. The investigations on the choice of working conditions of simultaneous electrochemical determination of water soluble vitamins groups B and C. It was found in the range of determined concentration from 10 to 60 mg/dm3 hundredfold excess of vitamin C doesn’t influence the analytical signals of vitamins B2 and B6. Maximal sensitivity and good reproducibility of determination have been obtained at glass carbon electrode in ground solution of sodium hydrotartrate. The mutual influence of vitamins was studied on model mixtures. Based on results involved the method of analysis of feeds and feed supplements by differential voltammetry have been proved. The methods is simple in fulfillment and low-costing, allows to analyses group of water soluble vitamins in the following concentration ranges: vitamin B2 from 0,5 to 60, vitamin B6 from 1,0 to 80 and C from 0,5 to 100 mg/kg (Srisnot more 25 %).