Determination of pesticide residues by GC-MS using analyte protectants to counteract the matrix effect
Determination of pesticide residues by GC-MS using analyte protectants to counteract the matrix effect
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DOI：
10.2116/analsci.21.1291
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发表时间：
2005-11-01
影响因子：
1.6
通讯作者：
Tadeo, JL
中科院分区：
文献类型：
--
作者：
Sánchez-Brunete, C;Albero, B;Tadeo, JL
开发了一种分析方法，以确定土壤，果汁和蜂蜜中的各种化学类别的农药使用分析物保护剂，以抵消增强的色谱响应产生的存在下的基质成分（基质效应）。土壤和蜂蜜样品的这种影响比果汁样品更明显;关于农药化学类别，有机氯农药受基质成分的影响小于三嗪类和有机磷农药。检测了几种分析物保护剂（2，3-丁二醇、L-古洛糖酸γ-内酯、玉米油和橄榄油），以抵消观察到的基质效应。L-古洛糖酸γ-内酯是一种有效的保护剂，土壤和蜂蜜样品中研究的大多数农药，而橄榄油是非常有效的果汁样品。发现这两种保护剂的组合是土壤和蜂蜜样品中所有化合物的有效分析物保护剂。
An analytical method was developed to determine pesticides of various chemical classes in soil, juice and honey using analyte protectants to counteract the enhancement of the chromatographic response produced by the presence of matrix components (matrix effect). This effect was more pronounced for soil and honey samples than for juice samples; regarding the pesticide chemical class, organochlorine pesticides were less affected by the presence of matrix components than triazines and organophosphorus pesticides. Several analyte protectants (2,3-butanediol, L-gulonic acid gamma-lactone, corn oil and olive oil) were tested for counteracting the observed matrix effect. L-Gulonic acid gamma-lactone was an effective protecting agent for most of the pesticides studied in soil and honey samples, whereas olive oil was very effective for juice samples. The combination of these two protectants was found to be an effective analyte protectant for all compounds in soil and honey samples.