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Improved in situ Hf isotope ratio analysis of zircon using newly designed X skimmer cone and jet sample cone in combination with the addition of nitrogen by laser ablation multiple collector ICP-MS
Hu, Zhaochu1; Liu, Yongsheng1; Gao, Shan1; Liu, Wengui1; Zhang, Wen1; Tong, Xirun1; Lin, Lin1; Zong, Keqing1; Li, Ming1; Chen, Haihong1; Zhou, Lian1; Yang, Lu2
2012
Source PublicationJOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
Volume27Issue:9Pages:1391-1399
AbstractThe effect of three different cone combinations on the performance of laser ablation MC-ICP-MS (Neptune plus) for the in situ Hf isotope analysis of zircon were investigated. The signal sensitivities of Hf, Yb and Lu were improved by a factor of 1.4 and 2.5, respectively, with using the X skimmer cone + standard sampler cone and the X skimmer cone + Jet sample cone compared to the standard arrangement (H skimmer cone + standard sample cone). However, when using the high-sensitivity Jet sample cone, the instrumental mass fractionation for hafnium displayed a large non-linear component that could not be corrected using the normal mass fractionation laws. The magnitude of this non-linear mass fractionation was strongly related to the central gas flow rate. The in situ Hf isotope analysis of zircon standards 91500 and Mud Tank using the Jet cone displayed large deviations (410-470 ppm) at the optimum central gas flow rate for Hf, which seriously deteriorated the performance of the Jet cone. The addition of 4 ml min(-1) nitrogen to the central gas flow in laser ablation MC-ICP-MS was found to not only increase the sensitivity of Hf by a factor of 2.1, but also suppress this non-linear mass fractionation. The determined Yb/Hf and Lu/Hf ratios at their corresponding optimum makeup gas flow rates for Hf intensity were found to be reduced by factors of 2 and 1.3 in the presence of nitrogen, respectively, which would benefit the accurate in situ determination of Hf isotopes in high-content Yb and Lu samples. Compared to the standard arrangement, the corresponding precision (2 sigma) of Hf-176/Hf-177 for single spot analysis of zircon standard 91500 was improved from 224 ppm to 50 ppm by using the newly designed X-skimmer cone and Jet sample cone in combination with the nitrogen addition technique. The determined Hf-176/Hf-177 ratios are in excellent agreement with published values in five reference zircon standards (91500, GJ-1, Mud Tank, Penglai and Plesovice). Our first Hf isotopic results from zircon standard M257 (0.281544 +/- 0.000018; 2SD, n = 151) showed that it was fairly homogeneous in Hf isotopes. These results clearly demonstrate that the present analytical method has the potential to become an important tool for the pursuit of high-quality in situ Hf isotope data for zircons.
DOI10.1039/c2ja30078h
Language英语
ISSN0267-9477
Indexed BySCI ; EI ; ESI高被引论文
EI Accession Number20123415356494
WOS IDWOS:000307306600003
WOS SubjectChemistry, Analytical ; Spectroscopy
WOS Research AreaChemistry ; Spectroscopy
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:901[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.cug.edu.cn/handle/2XU834YA/97237
Collection科研机构_地质过程与矿产资源国家重点实验室
教学院系_地球科学学院
行政部门_校长办公室
Corresponding AuthorHu, Zhaochu
Affiliation1.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China
2.Natl Res Council Canada, Ottawa, ON K1A 0R6, Canada
Recommended Citation
GB/T 7714
Hu, Zhaochu,Liu, Yongsheng,Gao, Shan,et al. Improved in situ Hf isotope ratio analysis of zircon using newly designed X skimmer cone and jet sample cone in combination with the addition of nitrogen by laser ablation multiple collector ICP-MS[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2012,27(9):1391-1399.
APA Hu, Zhaochu.,Liu, Yongsheng.,Gao, Shan.,Liu, Wengui.,Zhang, Wen.,...&Yang, Lu.(2012).Improved in situ Hf isotope ratio analysis of zircon using newly designed X skimmer cone and jet sample cone in combination with the addition of nitrogen by laser ablation multiple collector ICP-MS.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,27(9),1391-1399.
MLA Hu, Zhaochu,et al."Improved in situ Hf isotope ratio analysis of zircon using newly designed X skimmer cone and jet sample cone in combination with the addition of nitrogen by laser ablation multiple collector ICP-MS".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 27.9(2012):1391-1399.
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