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Title: Using capillary electrophoresis for the determination of organic acids in Port wine
Author: Esteves, V. I.
Lima, S. S. F.
Lima, D. L. D.
Duarte, A C
Keywords: Capillary electrophoresis
Organic acids
Issue Date: 2004
Abstract: The simultaneous separation and determination of organic acids in several samples of white and red Port wines was performed by capillary zone electrophoresis using indirectUVdetection with 2,6-pyridinedicarboxylic acid as a background electrolyte buffer. Operational parameters like migration time, temperature, voltage and capillary length were optimized. Sixteen samples of red wine and four samples of white wine were used to analyze for tartaric, malic, lactic, succinic and acetic acids using glyoxylic acid as the internal standard. The method is rapid, sensitive and quantitative, and time-consuming sample preparation, such as solid-phase extraction or liquid–liquid extraction procedure, is not required
Peer review: yes
DOI: 10.1016/j.aca.2003.12.036
ISSN: 0003-2670
Appears in Collections:DQ - Artigos

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