高分辨率电喷雾离子迁移率四极杆质谱法评价磺酰脲类除草剂

B. Clowers, W. Steiner, Heather M. Dion, L. Matz, M. Tam, E. Tarver, H. Hill
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引用次数: 18

摘要

本研究的目的是探索和评估高分辨率电喷雾电离大气压离子迁移谱法(ESI-AP-IMS)作为一种现场分析方法检测和鉴定水样中磺酰脲(SU)除草剂混合物的潜力。由于单硫除草剂的使用量增加、持续使用和潜在的作物危害,需要一种能够快速有效地评价单硫除草剂的环境分析方法。采用ESI-AP-IMS四极杆质谱法对8种SU除草剂进行了评价。所选择的除草剂是根据可用性和使用范围来选择的。采用四极杆质谱法对SU除草剂进行了定性鉴定,并测定了特征离子的迁移率降低值。在AP-IMS中可以发现各种环磺隆、甲磺隆、甲磺隆、甲基磺磺隆、甲基三苯脲和甲基原磺隆的混合物。易于使用,能够在环境条件下操作,以及相对快速的数据采集时间使ESI-AP-IMS成为水环境现场样品分析的有吸引力的候选者。©2002 Wiley期刊公司化学工程学报(英文版);2009;DOI 10.1002 / fact.10010
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Evaluation of sulfonylurea herbicides using high resolution electrospray ionization ion mobility quadrupole mass spectrometry
The purpose of the current study was to explore and assess the potential of high resolution electrospray ionization atmospheric pressure ion mobility spectrometry (ESI–AP-IMS) as a field analytical method for the detection and identification of mixtures of sulfonylurea (SU) herbicides in aqueous samples. Because of increased usage, persistent behavior, and potential for crop damage, an environmental method of analysis capable of evaluating SU herbicides in a swift and effective manner is necessary. Eight SU herbicides were evaluated using ESI–AP-IMS quadrupole mass spectrometry. The selected herbicides were chosen based upon availability and scope of use. The SU herbicide species were qualitatively identified using quadrupole mass spectrometry, followed by the determination of reduced mobility values for characteristic ions. Various mixtures of rimsulfuron, metsulfuron-methyl, prosulfuron, sulfometuron-methyl, tribenuron-methyl, and primisulfuron-methyl could be revealed using AP-IMS. The ease of use, ability to operate under ambient conditions, and relatively rapid data acquisition times make ESI–AP-IMS an attractive candidate for the analysis of aqueous environmental field samples. © 2002 Wiley Periodicals, Inc. Field Analyt Chem Technol 5: 302–312, 2001; DOI 10.1002/fact.10010
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