NOVELTY - Invention can be used for analysis of food products, fodder and fodder additives, agricultural products of vegetal origin, as well as in medicine. Method for simultaneous quantitative determination of a mixture of aflatoxin B1, B2, G1, G2 by stripping voltammetry involves converting aflatoxins of sample solution using anode stripping voltammetry in differential mode and glass-carbon indicator electrode. Accumulation of mixture of aflatoxins in stirred solution is performed during 30-40 s at electrolysis potential Ee=(0.0 plus minus 0.05) V relative to saturated silver chloride electrode on background of 0.1 M of ammonium sulphate in range of pH from 4 to 5 with subsequent recording anode peaks in differential mode capturing curves at a rate of potential sweep from 20 to 30 mV/s. Concentration of aflatoxins B1, B2, G1, G2 mixture is determined by peak height in range of potentials epsilon p(G1)=(+0.252 plus minus 0.001) V, epsilon p(B1)=(+0.505 plus minus 0.002) V! , Ep(B2)=(+0.675 plus minus 0.007) V, Ep(G2)=(+0.902 plus minus 0.001) V by standard mixtures addition method.
USE - Chemistry.
ADVANTAGE - Simultaneous determination of aflatoxin B1, B2, G1, G2 mixture.1 cl, 4 dwg, 3 tbl申请号：RU2592049-C1
专利号：RU2592049-C1
公开/公告号：RU119556
申请/专利权人：UNIV TOMSK NAT RES POLYTECH (UYTO-N)
发明/设计人：GAVRILOVA, M A；SLEPCHENKO, G B；GINDULINA, T M
分类号：G01N-027/48
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