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Validated capillary electrophoresis method for small‐anions measurement in wines
Author(s) -
Saavedra Luis,
Barbas Coral
Publication year - 2003
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/elps.200305415
Subject(s) - capillary electrophoresis , chromatography , chemistry , electrophoresis , capillary action , capillary electrochromatography , analytical chemistry (journal) , materials science , composite material
A capillary electrophoresis method has been developed and validated for acetic, citric, fumaric, lactic, malic, oxalic, succinic, and tartaric acids plus the measurement of nitrate and sulfite ions in white and red wines. The separation was carried out in a neutral coated capillary. Separation was performed at –14 kV of applied potential. Temperature was maintained at 20°C. The background electrolyte used was 200 m M phosphate buffer at pH 7.50. Separation was obtained in less than 13 min. Validation parameters obtained for the method permit it to be considered adequate for routine analysis.