DETERMINATION OF TANNINS IN ALCOHOL-CONTAINING LIQUIDS
https://doi.org/10.30764/1819-2785-2018-13-1-65-70
Abstract
The paper presents experimental findings on the influence of caramel color on the UV absorption spectra of tannin-containing liquids. The presence of caramel color in alcohol-containing brandy-type liquids is demonstrated to affect optical density at 280 nm, and therefore the results of spectrophotometric determination of tannins in brandies. A comprehensive approach incorporating a range of techniques, suсh as chemical testing for tannins, UV absorption spectroscopy, and quantitative permanganometric determination of tannins, is shown to be appropriate for the study of phenolic compounds.
About the Author
Irina L. Kazantseva
Saratov Forensic Science Laboratory of the Ministry of Justice of the Russian Federation
Russian Federation
Russian Federation
Kazantseva Irina Leonidovna – Doctor of Engineering, Deputy Head of Core Operations, SFSLRMJ, State Forensic Examiner.
Saratov 410003
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Review
For citations:
Kazantseva I.L. DETERMINATION OF TANNINS IN ALCOHOL-CONTAINING LIQUIDS. Theory and Practice of Forensic Science. 2018;13(1):65-70. (In Russ.) https://doi.org/10.30764/1819-2785-2018-13-1-65-70
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