气候变化领域集成服务门户(CCPortal): Sr-87/Sr-86 isotope ratios in rocks determined using inductively coupled plasma tandem mass spectrometry in O-2 mode without prior Sr purification

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DOI	10.1002/rcm.8690
	Sr-87/Sr-86 isotope ratios in rocks determined using inductively coupled plasma tandem mass spectrometry in O-2 mode without prior Sr purification
	Liu, Xiaoming; Dong, Shuofei; Yue, Yahu; Guan, Qiuyun; Sun, Yali; Chen, Shengsheng; Zhang, Jiuyuan; Yang, Yibo
通讯作者	Yue, YH ; Yang, YB (通讯作者)
发表日期	2020
ISSN	0951-4198
EISSN	1097-0231
卷号	34 期号:8
英文摘要	Rationale An inductively coupled plasma tandem mass spectrometry (ICP-MS/MS) instrument can be developed to determine Sr-87/Sr-86 ratios with an external precision better than 0.05% relative standard deviation (RSD) in mass shift mode without prior Sr purification. Previous studies suggested using CH3F, N2O, and SF6 as reaction gases for this method because a better reaction rate can be achieved with Sr+ than with O-2 in the reaction cell. However, these gases are not commonly used in general chemistry laboratories, and processes using these gases are difficult to implement quickly due to regulations. We aim to develop a rapid method that can be applied to many samples for the accurate determination of Sr-87/Sr-86 isotope ratios with precision below 0.1% RSD (or approximately to the fourth decimal place). Methods We evaluated the accuracy and precision of Sr-87/Sr-86 ratios in certified reference materials and different rock types determined using ICP-MS/MS with O-2 as the reaction gas in comparison with those determined using the multicollector inductively coupled plasma mass spectrometry (MC-ICP-MS) method. Results This study showed that by using the ICP-MS/MS method, the Sr-87/Sr-86 ratios of BCR-2 and BHVO-2 do not vary significantly with and without prior Sr purification; when the Sr concentration of the measured solution is within the range of 60-350 ng/mL, there is no significant effect on the measured Sr-87/Sr-86 ratios. The results also showed that the Sr-87/Sr-86 ratios of 23 different rock types measured by ICP-MS/MS and MC-ICP-MS methods agree very well. Conclusions The precision of the Sr-87/Sr-86 ratio measured using ICP-MS/MS varies between 0.0001 and 0.0019 (2SD). This precision is less than that of the MC-ICP-MS method but is sufficient for certain applications, such as identifying Sr-87/Sr-86 ratios in different rock types. These results suggest that the developed ICP-MS/MS method has the potential for future studies involving the identification of Sr sources.
关键词	STRONTIUM ISOTOPES TRACERS
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry ; Spectroscopy
WOS类目	Biochemical Research Methods ; Chemistry, Analytical ; Spectroscopy
WOS记录号	WOS:000519265300009
来源期刊	RAPID COMMUNICATIONS IN MASS SPECTROMETRY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259823
推荐引用方式 GB/T 7714	Liu, Xiaoming,Dong, Shuofei,Yue, Yahu,et al. Sr-87/Sr-86 isotope ratios in rocks determined using inductively coupled plasma tandem mass spectrometry in O-2 mode without prior Sr purification[J]. 中国科学院青藏高原研究所,2020,34(8).
APA	Liu, Xiaoming.,Dong, Shuofei.,Yue, Yahu.,Guan, Qiuyun.,Sun, Yali.,...&Yang, Yibo.(2020).Sr-87/Sr-86 isotope ratios in rocks determined using inductively coupled plasma tandem mass spectrometry in O-2 mode without prior Sr purification.RAPID COMMUNICATIONS IN MASS SPECTROMETRY,34(8).
MLA	Liu, Xiaoming,et al."Sr-87/Sr-86 isotope ratios in rocks determined using inductively coupled plasma tandem mass spectrometry in O-2 mode without prior Sr purification".RAPID COMMUNICATIONS IN MASS SPECTROMETRY 34.8(2020).