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Determination of clumped isotopes in carbonate using isotope ratio mass spectrometry: Toward a systematic evaluation of a sample extraction method using a static Porapak (TM) Q absorbent trap

文献类型：期刊论文

作者Wang, Xu1; Cui, Linlin2; Li, Yangyang1; Huang, Xiaofang1; Zhai, Jixuan1; Ding, Zhongli1
刊名INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
出版日期2016-06-01
卷号403页码:8-14
关键词Clumped isotope Carbonate Sample extraction method Porapak Q trap Optimum collection time
DOI10.1016/j.ijms.2016.03.008
文献子类Article
英文摘要In this study, we performed a detailed comparison of stable and clumped isotopic data for an extraction method passing CO2 through a Porapak Q absorbent trap (PQT) driven by liquid nitrogen (LN method), an extraction method passing CO2 through a PQT driven by liquid nitrogen and high vacuum pumping (LN + HV method) and an extraction method without a PQT (NAT method), to examine the effectiveness and reliability of these methods. Changes in raw Delta(47) values along with collection times were used to constrain the optimum collection time (OCT) for each method. The OCT for the LN method shortened considerably when the PQT was warmer, i.e., from similar to 35 min to similar to 30 min when the PQT temperature changed from -15 degrees C to -12.5 degrees C. In contrast, the OCT for the LN + HV method displayed little change with the PQT temperature and was reduced to 25 min for both -15 degrees C and -25 degrees C. The contaminant removal efficiency of these methods was evaluated by Delta(48) values, revealing that the LN method (with a -12.5 degrees C to -25 degrees C PQT) and the LN + HV method (at -25 degrees C) could effectively remove contaminants compared with the NAT method. Therefore, the LN + HV method (at -25.0 degrees C) may serve as a promising sample preparation method for routine measurement because it can save time without compromising sample cleaning efficiency. Nevertheless, the LN + HV method yielded Delta(47) values 0.04-0.05% higher than the LN method at the same temperature, possibly because of different absorption-desorption states of the PQT in these methods. These findings provide useful clues for optimizing CO2 extraction methods for clumped isotope analysis. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词PALEOSOL CARBONATES ; BODY TEMPERATURES ; C-13-O-18 BONDS
WOS研究方向Physics ; Spectroscopy
语种英语
WOS记录号WOS:000377734600002
资助机构National Basic Research Program of China (973 Program)(2012CB821905) ; National Basic Research Program of China (973 Program)(2012CB821905) ; National Natural Science Foundation of China(41572163) ; National Natural Science Foundation of China(41572163) ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB03020500) ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB03020500) ; National Basic Research Program of China (973 Program)(2012CB821905) ; National Basic Research Program of China (973 Program)(2012CB821905) ; National Natural Science Foundation of China(41572163) ; National Natural Science Foundation of China(41572163) ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB03020500) ; "Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB03020500)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53418]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, POB 9825, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, POB 9825, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Xu,Cui, Linlin,Li, Yangyang,et al. Determination of clumped isotopes in carbonate using isotope ratio mass spectrometry: Toward a systematic evaluation of a sample extraction method using a static Porapak (TM) Q absorbent trap[J]. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY,2016,403:8-14.
APA Wang, Xu,Cui, Linlin,Li, Yangyang,Huang, Xiaofang,Zhai, Jixuan,&Ding, Zhongli.(2016).Determination of clumped isotopes in carbonate using isotope ratio mass spectrometry: Toward a systematic evaluation of a sample extraction method using a static Porapak (TM) Q absorbent trap.INTERNATIONAL JOURNAL OF MASS SPECTROMETRY,403,8-14.
MLA Wang, Xu,et al."Determination of clumped isotopes in carbonate using isotope ratio mass spectrometry: Toward a systematic evaluation of a sample extraction method using a static Porapak (TM) Q absorbent trap".INTERNATIONAL JOURNAL OF MASS SPECTROMETRY 403(2016):8-14.

入库方式： OAI收割

来源：地质与地球物理研究所

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