Solid-Phase Extraction as a Clean-Up Procedure for the Liquid Chromatographic Determination of Benzoic and Sorbic Acids in Fruit-Derived Products
作者:
B. Mandrou,
V. Nolleau,
E. Gastaldi,
H. Fabre,
期刊:
Journal of Liquid Chromatography & Related Technologies
(Taylor Available online 1998)
卷期:
Volume 21,
issue 6
页码: 829-842
ISSN:1082-6076
年代: 1998
DOI:10.1080/10826079808000512
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A liquid-chromatographic procedure is proposed for the simultaneous determination of benzoic and sorbic acids in fruit-derived products. Prior to the chromatographic separation, a clean-up pre-treatment of the sample is carried out off-line, using successively an anionic resin and a C18stationary phase as sorbent beds. After elution from the cartridges, the acids are separated and quantitated by LC with UV-absorbance detection. The validation tests show that the technique can be applied to different types of fruit-derived products (i.e. jams, dried fruits and almond paste).
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