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	Tourmaline Megacryst Reference Materials for High Precision In Situ Boron Isotope and Elemental Measurement by LA-MC-ICP-MS
通讯作者	Hu, Zhaochu([email protected])
	Liao, Xiuhong1; Chen, Tao1; Luo, Tao1; Cai, Yue2,3; Zhang, Wen1; Yin, Zuowei1; Hu, Zhaochu1
	2024-12-16
发表期刊	GEOSTANDARDS AND GEOANALYTICAL RESEARCH
ISSN	1639-4488
页码	17
摘要	Tourmaline serves as a vital recorder of geological processes. However, suitable tourmaline reference materials (RMs) for elemental and stable isotopic composition in situ measurements are still limited. In this study, three tourmaline megacrysts (MD-B66, IM-B232 and BR-DG68) were characterised as potential RMs for B isotope measurements by LA-MC-ICP-MS and mass fraction determinations by LA-ICP-MS. Over 251 measurements with LA-MC-ICP-MS on ten randomly selected fragments from MD-B66 consistently yielded B isotope ratios of -7.74 +/- 0.25 parts per thousand (2s), establishing MD-B66 as a suitably homogeneous primary reference material for high-precision, in situ microbeam B isotope measurements. Notably, the (long-term) intermediate precision of 0.25 parts per thousand (2s) for in situ B isotope measurements obtained using this reference material is comparable to that reported from solution MC-ICP-MS methods in the literature. Two other tourmaline megacrysts, with intermediate precision ranging from +/- 0.48 parts per thousand to +/- 0.61 parts per thousand (2s) for delta 11B measurement, can be employed as secondary RMs for quality control. The mean delta 11B values determined by solution MC-ICP-MS for MD-B66 (-7.71 +/- 0.32 parts per thousand, n = 12), IM-B232 (-13.17 +/- 0.62 parts per thousand, n = 8) and BR-DG68 (-13.85 +/- 0.32 parts per thousand, n = 12), with expanded uncertainties at the 95% confidence level, are consistent with those determined by LA-MC-ICP-MS. Among these three new RMs, BR-DG68 displays relatively homogeneous major and trace element mass fractions. Characterisation using both in situ and wet chemical techniques demonstrated the suitability of BR-DG68 as the first tourmaline reference material for elemental measurement by LA-ICP-MS, which would permit matrix-matched and therefore more accurate elemental measurement in tourmalines. Unlike electron probe microanalysis with B and Li contents calculated based on stoichiometric assumptions, direct and accurate measurements of the two low atomic number elements, along with other major and trace elements can be achieved by LA-ICP-MS with the aid of the newly developed tourmaline reference material BR-DG68. Overall, current and future studies in geochemistry may benefit from these newly proposed tourmaline RMs, which should lead to significantly improved precision and accuracy for in situ B isotope and elemental measurement.
关键词	tourmaline microanalysis reference material boron isotopes elemental determination LA-MC-ICP-MS
DOI	10.1111/ggr.12594
收录类别	SCI
语种	英语
关键词[WOS]	GEOLOGICAL-MATERIALS ; SUBDUCTION-ZONE ; TRACE-ELEMENTS ; METAMORPHISM ; SYSTEMATICS ; EVOLUTION ; MINERALS ; RECORDER ; ORIGIN ; FLUID
资助项目	National Key R&D Program of China[2021YFC2903003] ; National Natural Science Foundation of China[42330104] ; CUG Scholar Scientific Research Funds at China University of Geosciences (Wuhan)[2023069] ; Postdoctoral Fellowship Program of China Postdoctoral Science Foundation[GZC20232464]
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:001378189200001
项目资助者	National Key R&D Program of China ; National Natural Science Foundation of China ; CUG Scholar Scientific Research Funds at China University of Geosciences (Wuhan) ; Postdoctoral Fellowship Program of China Postdoctoral Science Foundation
出版者	WILEY
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44716
专题	中国科学院南京地质古生物研究所
通讯作者	Hu, Zhaochu
作者单位	1.China Univ Geosci, Gemmol Inst, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Liao, Xiuhong,Chen, Tao,Luo, Tao,et al. Tourmaline Megacryst Reference Materials for High Precision In Situ Boron Isotope and Elemental Measurement by LA-MC-ICP-MS[J]. GEOSTANDARDS AND GEOANALYTICAL RESEARCH,2024:17.
APA	Liao, Xiuhong.,Chen, Tao.,Luo, Tao.,Cai, Yue.,Zhang, Wen.,...&Hu, Zhaochu.(2024).Tourmaline Megacryst Reference Materials for High Precision In Situ Boron Isotope and Elemental Measurement by LA-MC-ICP-MS.GEOSTANDARDS AND GEOANALYTICAL RESEARCH,17.
MLA	Liao, Xiuhong,et al."Tourmaline Megacryst Reference Materials for High Precision In Situ Boron Isotope and Elemental Measurement by LA-MC-ICP-MS".GEOSTANDARDS AND GEOANALYTICAL RESEARCH (2024):17.

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