Reliable identification of pesticides using linear retention indices as an active tool in gas chromatographic-mass spectrometric analysis
Reliable identification of pesticides using linear retention indices as an active tool in gas chromatographic-mass spectrometric analysis
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DOI：
10.1016/j.chroma.2007.11.037
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发表时间：
2008-04-04
影响因子：
4.1
通讯作者：
Dugo, Giovanni
中科院分区：
文献类型：
--
作者：
Mondello, Luigi;Salvatore, Angelo;Dugo, Giovanni
本研究的重点是目前的发展和就业的一个专门的农药质谱库，其特征在于由一个双过滤器搜索程序：第一个是基于光谱相似性的程度和第二个色谱保留信息（线性保留指数）。库中所包含的高纯度质谱是通过对广泛使用的农药混合物进行全面的GC-MS分析而获得的。通过在单柱GC-MS系统上进样相同化合物来计算常规GC-MS分析的线性保留指数。通过自动固相微萃取-GC-MS分析加标10种结构相似的拟除虫菊酯化合物的白色葡萄酒样品，验证了该方法的有效性。（C）2007 Elsevier B. V.版权所有。
The present research is focused on the current development and employment of a dedicated pesticide mass spectral library, characterized by a double-filter search procedure: the first is based on the degree of spectral similarity and the second on chromatographic retention information (linear retention indices). The highly pure mass spectra contained in the library have been attained by subjecting mixtures of widely used pesticides to comprehensive GC-MS analysis. Linear retention indices for conventional GC-MS analyses were calculated by injecting the same compounds on a sin-le-column GC-MS system. The effectiveness of this approach was verified by analysing a white wine sample spiked with 10 structurally similar pyrethroid compounds, through automated solid-phase microextraction-GC-MS. (C) 2007 Elsevier B.V. All rights reserved.