Assessment of primary and secondary amine adsorbents and elution solvents with or without graphitized carbon for the SPE clean-up of food extracts in pesticide residue analysis
文献类型: 外文期刊
第一作者: He, Yan
作者: He, Yan;Liu, Yan-Hong
作者机构:
关键词: gas chromatography;mass spectrometry;solid phase extraction;food analysis;pesticide in food products;primary and secondary amines
期刊名称:CHROMATOGRAPHIA ( 影响因子:2.044; 五年影响因子:1.725 )
ISSN: 0009-5893
年卷期: 2007 年 65 卷 9-10 期
页码:
收录情况: SCI
摘要: Primary and secondary amine (PSA) is one of the most powerful solid-phase extraction adsorbent for clean-up of food matrices and multi-pesticide residue analysis. The present study investigates the influence of elution protocols on the capacity of PSA for removal of fatty acids and the root regarding poor recoveries of metamidophos and acephate. the uses of toluene, hexane and/or acetone in the elution severely reduce the capacity of PSA for removal of fatty acids. Water is essential in the elution for full recoveries of the polar pesticides. PSA cartridge alone, PSA/carbon serial cartridge design and the novel elution protocols have been developed for this kind of applications.
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