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	Analysis of herbicides on a single C-30 bead via a microfluidic device combined with electrospray ionization quadrupole time-of-flight mass spectrometer
	Wei, Huibin ; Li, Haifang ; Lin, Jin-Ming
	2010-10-12 ; 2010-10-12
关键词	Microfluidic device ESI-Q-TOF-MS Single particle Herbicides PERFORMANCE LIQUID-CHROMATOGRAPHY SOLID-PHASE MICROEXTRACTION MICROWAVE-ASSISTED EXTRACTION TOTAL ANALYSIS SYSTEMS TRIAZINE HERBICIDES GAS-CHROMATOGRAPHY AQUEOUS SAMPLES WATER SAMPLES DNA ANALYSIS NEEDLE TRAP Biochemical Research Methods Chemistry, Analytical
中文摘要	An integrated system combining microfluidic device with electrospray ionization quadrupole time-of-flight mass spectrometer (ESI-Q-TOF-MS) was developed for detecting a series of herbicides on a single C-30 bead. We presented Single C-30 beads manipulation which had absorbed sequential herbicides, based on the precise control of the concentration and absorption time. The simple microchip consisting of a straight channel and a hole in the middle enabled single C-30 bead introduction, transformation and location. ESI-Q-TOF-MS was employed to realize highly sensitive qualitative analysis and implement semi-quantitative analysis. Once the C-30 bead contacted with eluting solution, the solute transferred into eluting and Would be detected by ESI-Q-TOF-MS. Depending on desorption Curves obtained, accurate and clear characteristic peaks for each analysts were carried out. Our investigations on single-particle analysis showed that the combination of microfluidic device and mass spectrum could reduce the analysis time to 5 min and the solvent consumption to 2.5 mu L, realize high sensitivity detection, and avoid the complex sample pretreatment. The significant potential on analysis of environmental samples on this combination system by single particle was demonstrated. (C) 2009 Elsevier B.V. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCIENCE BV ; AMSTERDAM ; PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81121]
专题	清华大学
推荐引用方式 GB/T 7714	Wei, Huibin,Li, Haifang,Lin, Jin-Ming. Analysis of herbicides on a single C-30 bead via a microfluidic device combined with electrospray ionization quadrupole time-of-flight mass spectrometer[J],2010, 2010.
APA	Wei, Huibin,Li, Haifang,&Lin, Jin-Ming.(2010).Analysis of herbicides on a single C-30 bead via a microfluidic device combined with electrospray ionization quadrupole time-of-flight mass spectrometer..
MLA	Wei, Huibin,et al."Analysis of herbicides on a single C-30 bead via a microfluidic device combined with electrospray ionization quadrupole time-of-flight mass spectrometer".(2010).

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