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	Femtogram Detection and Quantitation of Residues Using Laser Ionization Orthogonal Time-of-Flight Mass Spectrometry
	Yu, Quan ; Cao, Zhiyu ; Li, Lingfeng ; Yan, Bin ; Hang, Wei ; Hang W(杭纬) ; He, Jian ; Huang, Benli ; Huang BL(黄本立)
	2009-09
英文摘要	A newly developed high irradiance laser ionization orthogonal time-of-flight mass spectrometer (LI-O-TOFMS) was employed for the elemental analysis of residues, which were prepared by evaporating mixed salt solutions. The residues were first characterized in terms of shape and elemental distribution. In TOFMS detection, all of the metal element,; in the residue can be observed in the spectra. Relative sensitivity coefficients for different elements were within 1 order of magnitude, which meets semiquantitative analysis criteria. By calculating the individual masses from the ablated area due to a single laser shot, the absolute detection limit reached 7 x 10(-15) g for most metal elements. The results indicate that LI-O-TOFMS is capable of performing ultratrace elemental qualification and quantification, with an absolute limit of detection and an absolute limit of quantitation at the femtogram level.; Natural Science Foundation of China ; Fujian Province Departmerit of Science Technology ; NFITFBS [J0630429]
语种	英语
出版者	AMER CHEMICAL SOC
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:10.1021/ac901615k]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Yu, Quan,Cao, Zhiyu,Li, Lingfeng,et al. Femtogram Detection and Quantitation of Residues Using Laser Ionization Orthogonal Time-of-Flight Mass Spectrometry[J],2009.
APA	Yu, Quan.,Cao, Zhiyu.,Li, Lingfeng.,Yan, Bin.,Hang, Wei.,...&黄本立.(2009).Femtogram Detection and Quantitation of Residues Using Laser Ionization Orthogonal Time-of-Flight Mass Spectrometry..
MLA	Yu, Quan,et al."Femtogram Detection and Quantitation of Residues Using Laser Ionization Orthogonal Time-of-Flight Mass Spectrometry".(2009).

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