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- Title
Determination of α-Dicarbonyls in Wines Using: Salting-Out Assisted Liquid-Liquid Extraction.
- Authors
Maria Valente, Inês; António Rodrigues, José
- Abstract
A method based on salting-out assisted liquid-liquid extraction for the analysis of a-dicarbonyls in wines was developed. The sample preparation procedure consists of a single step, involving the simultaneous extraction and derivatization of the analytes using an o-phenylenediamine-acetonitrile solution with sodium chloride as the salting-out agent. The obtained organic phase is collected and directly analyzed by liquid chromatography with spectrophotometric detection. The studied a-dicarbonyls were determined in eight wines. The developed methodology substantially reduces the complexity of the sample matrix, which is a very important aspect in routine analysis, especially to ensure long-lasting and reliable functioning of the chromatographic systems, while being a new and attractive methodology for the analysis of a-dicarbonyls.
- Subjects
LIQUID-liquid extraction; WINE chemistry; CARBONYL group; PHENYLENEDIAMINES; ACETONITRILE
- Publication
LC-GC Europe, 2017, Vol 30, Issue s10, p22
- ISSN
1471-6577
- Publication type
Article