期刊
JOURNAL OF ANALYTICAL CHEMISTRY
卷 71, 期 8, 页码 755-758出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1061934816080037
关键词
spectrophotometry; lactic acid; iron(III) chloride
资金
- Ministry of Education and Science of the Russian Federation [RFMEFI57914X0013, RFMEFI59214X0002]
An efficient and inexpensive spectrophotometric method has been developed for the determination of lactic acid in the individual state and in food and biological and cultural liquids. The method is based on the spectrophotometric determination of the colored product of the reaction of lactate ions with iron(III) chloride at 390 nm. The optimum conditions of the reaction have been found, and a calibration curve in the range from 0.3 to 10 g/L of lactic acid with the correlation coefficient 0.9999 has been constructed. The method does not require complex sample preparation.
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