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Simultaneous Direct Analysis of Benzimidazole Fungicides and Relevant Metabolites in Agricultural Products Based on Multifunction Dispersive Solid-phase Extraction and Liquid Chromatography–mass Spectrometry by Bin Guo; Zhiqiang Huang; Meiling Wang; Xiaoying Wang; Ying Zhang; Bo Chen; Yongjun Li; Hongfei Yan; Shouzhuo Yao is a Chemistry article available to read on EtoBox.
What is Simultaneous Direct Analysis of Benzimidazole Fungicides and Relevant Metabolites in Agricultural Products Based on Multifunction Dispersive Solid-phase Extraction and Liquid Chromatography–mass Spectrometry about?
A fast and flexible multi-residue procedure for effective extraction of benzimidazole fungicides and the related transformation products in various raw agricultural commodities is developed for direct and simultaneous analysis by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The new sample preparation method, introduced to allow direct extraction of the labile fungicides as the intact forms in complex matrices, is achieved using a conservative homogenizing extraction and multifunction adsorption cleanup (CHEMAC), which basically involves salting-out partitioning/extraction with acetate-buffered acetonitrile at low-temperature and sequential rapid solid-phase dispersive cleanup with a ternary sorbent mixture. The CHEMAC procedure was optimized and further modified by incorporating several pretreatment variables influencing sample stability and process efficiency, such as pH, temperature, salt and sorbent utilized. By using CHEMAC, a noteworthy improvement in extraction recoveries was obtained for the problematic fungicides, while no significant differential matrix effects were detected on the LC-MS/MS analysis in all 9 matrices. The in-source fragmentation of benomyl oc
Who reads Simultaneous Direct Analysis of Benzimidazole Fungicides and Relevant Metabolites in Agricultural Products Based on Multifunction Dispersive Solid-phase Extraction and Liquid Chromatography–mass Spectrometry?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Bin Guo; Zhiqiang Huang; Meiling Wang; Xiaoying Wang; Ying Zhang; Bo Chen; Yongjun Li; Hongfei Yan; Shouzhuo Yao
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 1873-3778)
- Published
- 2010
- Language
- EN
- Field
- Chemistry (Physical Sciences)