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Determination of the Mercury Isotopic Ratio by Cold Vapor Generation Sector Field-Inductively Coupled Plasma-Mass Spectrometry Using Lead as the Internal Standard
Tang, XX; Qian, Y; Li, YL; Fei, ZJ; Yao, J; Ma, JF; Liu, W
2018
Source PublicationANALYTICAL LETTERS
ISSN0003-2719
Volume51Issue:12Pages:1944-1955
Subtype期刊论文
AbstractLead was applied as an internal standard for the determination of Hg isotopic ratios. Cold vapor generation (CV) coupled with sector field-inductively coupled plasma-mass spectrometry (CV-SF-ICP-MS) was used for determination of Hg. It was effective to avoid interferences of Pb from samples while improving the sensitivity of Hg isotopic analysis by an approximate factor of 45 times higher than the aerosol mode. CV-SF-ICP-MS system was constructed and operational parameters were optimized. Research showed that the long stability of the system was limited by SF-ICP-MS and had no relationship with CV under the optimized conditions. The optimized precision of Hg isotopic ratio analysis was approximately 0.1% during 4 h. Five models were applied for the mass bias correction and the Baxter model obtained the smallest relative difference, 0.52 parts per thousand. The results showed that the mean value of NIST SRM 3133 Hg isotopic ratios obtained by Pb internal standard was nearly identical with the value for Tl. The same performance was also obtained in two environmental reference materials. The results show that Pb may be used as the internal standard for determination of Hg isotopic ratio instead of Tl.
KeywordAtomic-absorption-spectrometry Bias Correction Icp-ms Hg Precision Fractionation Validation Health Model
DOI10.1080/00032719.2017.1394319
Indexed BySCI
Language英语
WOS IDWOS:000430986500010
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28966
Collection中科院上海应用物理研究所2011-2019年
Affiliation1.Tang, XX
2.Qian, Y
3.Li, YL
4.Fei, ZJ
5.Yao, J
6.Ma, JF
7.Liu, W
Recommended Citation
GB/T 7714
Tang, XX,Qian, Y,Li, YL,et al. Determination of the Mercury Isotopic Ratio by Cold Vapor Generation Sector Field-Inductively Coupled Plasma-Mass Spectrometry Using Lead as the Internal Standard[J]. ANALYTICAL LETTERS,2018,51(12):1944-1955.
APA Tang, XX.,Qian, Y.,Li, YL.,Fei, ZJ.,Yao, J.,...&Liu, W.(2018).Determination of the Mercury Isotopic Ratio by Cold Vapor Generation Sector Field-Inductively Coupled Plasma-Mass Spectrometry Using Lead as the Internal Standard.ANALYTICAL LETTERS,51(12),1944-1955.
MLA Tang, XX,et al."Determination of the Mercury Isotopic Ratio by Cold Vapor Generation Sector Field-Inductively Coupled Plasma-Mass Spectrometry Using Lead as the Internal Standard".ANALYTICAL LETTERS 51.12(2018):1944-1955.
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