The Application of Spectral Luminescent Method to Examine Alcohol-Containing Liquids Produced Using Rectified Ethyl Alcohol
https://doi.org/10.30764/1819-2785-2019-14-4-75-82
Abstract
The possibility to apply the spectral-luminescent method using spectrophotometer Specord M40 with the attachment for fluorescence measuring to determine the nature of the basic alcohol in liquids produced using rectified ethyl alcohol has been considered. The analysis of model mixtures of aromatic amino acids (tryptophan, tyrosine, phenylalanine) has been performed to determine the characteristic bands in the luminescence excitation spectrum. The parameters of an adapted method for determining the nature of the basic alcohol (from food or non-food raw materials) of a liquid by comparative research of known spectrum of Lux ethyl rectified alcohol from food raw materials have been justified. The reasons limiting the application of the method have been analyzed: it is shown that the presence of food additives and flavors containing phenolic groups used in recipes of alcoholcontaining liquids can influence the luminescence of the basic alcohol significantly and, consequently, the identification result for the nature of the alcohol.
About the Authors
I. L. Kazantseva
Saratov Laboratory of Forensic Science of the Ministry of Justice of the Russian Federation
Russian Federation
Kazantseva Irina Leonidovna – Doctor of Engineering, Deputy Chief Operating Officer, State Forensic Expert
Russian Federation
Kazantseva Irina Leonidovna – Doctor of Engineering, Deputy Chief Operating Officer, State Forensic Expert
V. M. Bulanov
Saratov Laboratory of Forensic Science of the Ministry of Justice of the Russian Federation
Russian Federation
Bulanov Vladimir Michailovich – Leading State Forensic Expert
Russian Federation
Bulanov Vladimir Michailovich – Leading State Forensic Expert
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Review
For citations:
Kazantseva I.L., Bulanov V.M. The Application of Spectral Luminescent Method to Examine Alcohol-Containing Liquids Produced Using Rectified Ethyl Alcohol. Theory and Practice of Forensic Science. 2019;14(4):75-82. (In Russ.) https://doi.org/10.30764/1819-2785-2019-14-4-75-82
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