An evaluation of precision and accuracy of SIMS oxygen isotope analysis
An evaluation of precision and accuracy of SIMS oxygen isotope analysis
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SIMS氧同位素分析的精密度和准确度评估
DOI:
10.1016/j.sesci.2018.05.001
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发表时间:
2018-09
影响因子:
2
通讯作者:
Gang-Jian Wei
中科院分区:
文献类型:
--
作者:
Qing Yang;Xiao-Ping Xia;Wan-Feng Zhang;Yan-Qiang Zhang;Bo-Qin Xiong;Yi-Gang Xu;Qiang Wang;Gang-Jian Wei
In this study, a high-precision secondary ion mass spectrometry (SIMS) zircon oxygen isotope ratio analytical protocol is described. The analysis is conducted using a Cameca IMS 1280-HR at the SIMS Laboratory of Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (GIGCAS). Four reference zircons (91,500, Qinghu, TEMORA 2 and Penglai) have been chosen to evaluate the reproducibility (precision) and accuracy. An identical protocol is used for the analyses, with unchanged instrumental parameters and with ion beam intensities kept as identical as possible. The Penglai zircon is used as an external reference material to calibrate the instrumental mass fractionation. The 91,500, Qinghu and TEMORA 2 zircons are used as the unknown samples, which yielded 10.15 ± 0.26‰ (2SD), 5.46 ± 0.24‰ (2SD) and 8.33 ± 0.29‰ (2SD), respectively, all consistent with the recommended values within error (2SD). A half-year long-term precision of 0.44‰ (2SD) is achieved using the Qinghu zircon as a monitoring sample for the routine measurement of zircon18O/16O ratio, which demonstrates the reliability of this analytical protocol.
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影响因子:
5.3
作者:
T. Ushikubo;N. Kita;A. Cavosie;S. Wilde;R. Rudnick;J. Valley
通讯作者:
T. Ushikubo;N. Kita;A. Cavosie;S. Wilde;R. Rudnick;J. Valley
影响因子:
5
作者:
Yan Yan-Yan;Youbin Sun;Hongyun Chen;Long Ma
通讯作者:
Yan Yan-Yan;Youbin Sun;Hongyun Chen;Long Ma
影响因子:
3.8
作者:
Li, Xian-Hua;Long, Weng-Guo;Tao, Hua
通讯作者:
Tao, Hua
影响因子:
3.5
作者:
M. Riishuus;C. Harris;D. Peate;C. Tegner;J. Wilson;C. Brooks
通讯作者:
M. Riishuus;C. Harris;D. Peate;C. Tegner;J. Wilson;C. Brooks
影响因子:
3.9
作者:
M. Whitehouse;A. Nemchin
通讯作者:
M. Whitehouse;A. Nemchin