## Abstract A multi‐residue method for the analysis of pesticides in tea was developed by online size exclusion chromatography (SEC)‐GC/MS with full scan mode. The sample was fortified with chlorpyrifos‐d~10~ isotope internal standard and extracted by acetonitrile. After purification by primary sec
dentification of Novel Pesticides and Impurities by the Combination of LC-MS with GC-MS Analysis
✍ Scribed by Zhang Su-Yan; Geng Yu; Guo Yin-Long; Wang Hao; Lü Long
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 86 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0256-7660
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
High performance liquid chromatography (HPLC) and electrospray ionization mass spectrometry (ESI‐MS) have been utilized to analyze the synthesized 2‐(2‐arylaminomethylphenoxy)pyrimidine derivatives, which are a new kind of environmentally benign herbicides and have passed the temporary pesticide registration. The identification of main product and impurities has been achieved according to the UV and mass spectra. Moreover, one impurity, introduced by the raw material in the last step of the synthetic route, was identified by GC‐MS analysis. It can be concluded that the combination of chromatography and mass spectrometry, including LC‐MS and GC‐MS, provided a vital tool of the pesticide science.
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