A novel sample cell for reducing the "Position Effect" in laser ablation MC-ICP-MS isotopic measurements

doi:10.1039/c8ja00083b

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	A novel sample cell for reducing the "Position Effect" in laser ablation MC-ICP-MS isotopic measurements
	Xie, Lie-Wen 1,2; Xu, Lei 1,2; Yin, Qing-Zhu 3; Yang, Yue-Heng 1,2; Huang, Chao 1,2; Yang, Jin-Hui 1,2
刊名	JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
	2018-09-01
卷号	33 期号:9 页码:1571-1578
ISSN号	0267-9477
DOI	10.1039/c8ja00083b
英文摘要	A novel laser ablation cell geometry significantly reduces the so-called position effect on high precision and accuracy isotopic measurements by Laser Ablation-Multiple Collector-Inductively Coupled Plasma-Mass Spectrometry (LA-MC-ICP-MS). The peak shape, amplitude and pulse duration of the Fe-56 signal for a single laser shot at the carrier gas flow rate in a range from 0.85 to 1.4 L min(-1) were studied, and then twelve analytical areas in the sample cell were selected to assess the homogeneity of aerosol transport efficiency in response to a single laser shot under optimized gas flow conditions. To further investigate whether position effects occur in the new cell, the Fe isotopic composition of Balmat pyrite was measured with extreme separation distances between the sample' and standard' in horizontal and vertical carrier gas flow directions in two gas flow rate scenarios. The results show that the position effect on Fe isotopic ratios is obvious at a flow rate of 0.85 L min(-1). Nevertheless, the position effect is negligible at a flow rate of 1.00 L min(-1). The Fe isotopic composition of in-house reference pyrite sample H1 is determined with Fe-56 and Fe-57 values of -0.11 +/- 0.20 (2SD, n = 24) and -0.19 +/- 0.40 (2SD, n = 24), respectively. These results are consistent with those measured by MC-ICP-MS solution methods (95% confidence interval). We conclude that the new sample cell can be extensively applied for high precision and accuracy LA-MC-ICP-MS stable isotope analysis.
资助项目	National Natural Science Foundation of China[41473012] ; National Natural Science Foundation of China[41521062] ; National Natural Science Foundation of China[41525012]
WOS关键词	PLASMA-MASS SPECTROMETRY ; IN-SITU DETERMINATION ; U-PB ; GEOLOGICAL-MATERIALS ; RATIO ANALYSIS ; FRACTIONATION ; DESIGN
WOS研究方向	Chemistry ; Spectroscopy
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000444244600016
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88715]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者	Xie, Lie-Wen
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, POB 9825, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, POB 9825, Beijing 100029, Peoples R China 3.Univ Calif Davis, Dept Earth & Planetary Sci, Davis, CA 95616 USA
推荐引用方式 GB/T 7714	Xie, Lie-Wen,Xu, Lei,Yin, Qing-Zhu,et al. A novel sample cell for reducing the "Position Effect" in laser ablation MC-ICP-MS isotopic measurements[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2018,33(9):1571-1578.
APA	Xie, Lie-Wen,Xu, Lei,Yin, Qing-Zhu,Yang, Yue-Heng,Huang, Chao,&Yang, Jin-Hui.(2018).A novel sample cell for reducing the "Position Effect" in laser ablation MC-ICP-MS isotopic measurements.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,33(9),1571-1578.
MLA	Xie, Lie-Wen,et al."A novel sample cell for reducing the "Position Effect" in laser ablation MC-ICP-MS isotopic measurements".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 33.9(2018):1571-1578.