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Titanium Isotope Analysis of Igneous Reference Materials using a Double-spike MC-ICP-MS Method

文献类型：期刊论文

作者Li, Jin1; Tang, Suohan1; Zhu, Xiangkun1; Ma, Jianxiong1; Zhao, Xinmiao2
刊名ACTA GEOLOGICA SINICA-ENGLISH EDITION
出版日期2022-04-01
卷号96期号:2页码:517-524
ISSN号1000-9515
关键词Ti isotope double-spike mass bias correction MC-ICP-MS reference material
DOI10.1111/1755-6724.14728
英文摘要Ti separation was achieved by ion-exchange chromatography using Bio-Rad AG 1-X8 anion-exchange and DGA resins. For high-Fe/Ti and high-Mg/Ti igneous samples, a three-column procedure was required, whereas a two-column procedure was used for low-Fe/Ti and low-Mg/Ti igneous samples. The Ti isotopes were analysed by MC-ICP-MS, and instrumental mass bias was corrected using a Ti-47-Ti-49 double-spike technique. The Ti-47-Ti-49 double-spike and SRM 3162a were calibrated using SRM 979-Cr, certificated value Cr-53/Cr-52(true) = 0.11339. Isobaric interference was evaluated by analysing Alfa-Ti doped with Na, Mg, Ca, and Mo, and results indicate that high concentrations of Na and Mg have no significant effect on Ti isotope analyses; however, Ca and Mo interferences lead to erroneous delta Ti-49/47 values when Ca/Ti and Mo/Ti ratios exceed 0.01 and 0.1, respectively. Titanium isotopic compositions were determined for 12 igneous reference materials, BCR-2, BHVO-2, GBW07105, AGV-1, AGV-2, W-2, GBW07123, GBW07126, GBW07127, GBW07101, JP-1, and DTS-2b. Samples yield delta Ti-49/47 (parts per thousand) of -0.035 +/- 0.022, -0.038 +/- 0.031, 0.031 +/- 0.022, 0.059 +/- 0.038, 0.044 +/- 0.037, 0.000 +/- 0.015, 0.154 +/- 0.044, -0.044 +/- 0.018, 0.010 +/- 0.022, 0.064 +/- 0.043, 0.169 +/- 0.034, and -0.047 +/- 0.025 (relative to OL-Ti, +/- 2SD), respectively; of which isotopic compositions of DTS-2b, JP-1, GBW07101, GBW07105, GBW07123, GBW07126, and GBW07127 are reported for the first time. Standard Alfa-Ti was analysed repeatedly over a ten-month period, indicating a reproducibility of +/- 0.047 (2SD) for delta Ti-49/47, similar to the precisions obtained for geochemical reference materials.
WOS关键词CARBONACEOUS CHONDRITE ; REFRACTORY INCLUSIONS ; GEOLOGICAL SAMPLES ; TI-50 ANOMALIES ; MURCHISON ; TI ; SEPARATION ; ALLENDE ; RATIOS ; IDENTIFICATION
资助项目National Natural Science Foundation of China[41473005] ; National Natural Science Foundation of China[41973020] ; National Natural Science Foundation of China[41873027]
WOS研究方向Geology
语种英语
出版者WILEY
WOS记录号WOS:000788236600010
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
源URL[http://ir.iggcas.ac.cn/handle/132A11/105144]  
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Tang, Suohan
作者单位1.Chinese Acad Geol Sci, Inst Geol, MNR Key Lab Isotope Geol, Beijing 100037, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Li, Jin,Tang, Suohan,Zhu, Xiangkun,et al. Titanium Isotope Analysis of Igneous Reference Materials using a Double-spike MC-ICP-MS Method[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2022,96(2):517-524.
APA Li, Jin,Tang, Suohan,Zhu, Xiangkun,Ma, Jianxiong,&Zhao, Xinmiao.(2022).Titanium Isotope Analysis of Igneous Reference Materials using a Double-spike MC-ICP-MS Method.ACTA GEOLOGICA SINICA-ENGLISH EDITION,96(2),517-524.
MLA Li, Jin,et al."Titanium Isotope Analysis of Igneous Reference Materials using a Double-spike MC-ICP-MS Method".ACTA GEOLOGICA SINICA-ENGLISH EDITION 96.2(2022):517-524.

入库方式： OAI收割

来源：地质与地球物理研究所

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