caa a22 4500 463220099 CHVBK 20180405153209.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1134/S1061934807080126 doi (NATIONALLICENCE)springer-10.1134/S1061934807080126 Chromatographic determination of phthalic acid esters as an indicator of adulterated cognacs and cognac spirits [Elektronische Daten] [S. Savchuk, G. Kolesov] Based on the study performed, a conclusion was drawn that a system of procedures should be introduced into the practice of arbitration laboratories in order to identify the authenticity of cognacs and cognac spirits. These procedures were exemplified in the identification of diethyl phthalate in cognacs. Factors responsible for the falsely positive detection of diethyl phthalate in cognacs and cognac spirits were revealed. A substance that has a retention time equal to that of diethyl phthalate was identified as monoethyl succinate. As an example, recommendations were given for revealing adulterated cognac samples upon the detection of phthalic acid esters in them (including diethyl phthalate, which is a marker of denaturation). Sources of the contamination of test samples with diethyl phthalate were identified; an algorithm was developed for distinguishing between diethyl phthalate as an impurity component and diethyl phthalate added to an alcohol as a denaturation marker. Pleiades Publishing, Ltd., 2007 Savchuk S. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, 119991, Moscow, Russia aut Kolesov G. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, 119991, Moscow, Russia aut Journal of Analytical Chemistry Nauka/Interperiodica 62/8(2007-08-01), 761-772 1061-9348 62:8<761 2007 62 10809 https://doi.org/10.1134/S1061934807080126 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061934807080126 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Savchuk S. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Kolesov G. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, 119991, Moscow, Russia aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 62/8(2007-08-01), 761-772 1061-9348 62:8<761 2007 62 10809 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer