Determination of iron and copper ions in cognacs by capillary electrophoresis

A method is developed for the determination of iron(III) and copper(II) in cognacs by capillary electrophoresis ( CE ) with diode array detection with limits of detection 0.06 and 0.6 mg/L, respectively. Foreign substances present in cognac do not interfere with the determination. The accuracy of th...

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Bibliographic Details
Published inJournal of analytical chemistry (New York, N.Y.) Vol. 70; no. 2; pp. 198 - 202
Main Authors Popova, O. V., Sursyakova, V. V., Burmakina, G. V., Rubaylo, A. I.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.02.2015
Springer
Subjects
Analytical Chemistry
Chemical properties
Chemistry
Chemistry and Materials Science
Composition
Copper ions
Electrophoresis
Identification and classification
Iron
Methods
Wine
diode array detector
iron
copper
cognac
EDTA
background electrolyte
capillary electrophoresis
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Summary:A method is developed for the determination of iron(III) and copper(II) in cognacs by capillary electrophoresis ( CE ) with diode array detection with limits of detection 0.06 and 0.6 mg/L, respectively. Foreign substances present in cognac do not interfere with the determination. The accuracy of the results of analysis was confirmed by the added-found method. The method was applied to the analysis of seven cognac samples. The data obtained by CE are in a good agreement with the results of inductively coupled plasma mass spectrometry.
ISSN:1061-9348
1608-3199
DOI:10.1134/S1061934814120120