Absolute measurements and certified reference material for iron isotopes using multiple-collector inductively coupled mass spectrometry.

Absolute measurements and certified reference material for iron isotopes using multiple-collector inductively coupled mass spectrometry. Research Abstract Details 

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Absolute measurements and certified reference material for iron isotopes using multiple-collector inductively coupled mass spectrometry. Abstract Text:

Tao Zhou,Motian Zhao,Jun Wang,Hai Lu,

Two enriched isotopes, 99.94 at.% (56)Fe and 99.90 at.% (54)Fe, were blended under gravimetric control to prepare ten synthetic isotope samples whose (56)Fe isotope abundances ranged from 95% to 20%. For multiple-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) measurements typical polyatomic interferences were removed by using Ar and H(2) as collision gas and operating the MC-ICP-MS system in soft mode. Thus high-precision measurements of the Fe isotope abundance ratios were accomplished. Based on the measurement of the synthetic isotope abundance ratios by MC-ICP-MS, the correction factor for mass discrimination was calculated and the results were in agreement with results from IRMM014. The precision of all ten correction factors was 0.044%, indicating a good linearity of the MC-ICP-MS method for different isotope abundance ratio values. An isotopic reference material was certified under the same conditions as the instrument was calibrated. The uncertainties of ten correction factors K were calculated and the final extended uncertainties of the isotopic certified Fe reference material were 5.8363(37) at.% (54)Fe, 91.7621(51) at.% (56)Fe, 2.1219(23) at.% (57)Fe, and 0.2797(32) at.% (58)Fe. Copyright (c) 2008 John Wiley & Sons, Ltd.

Absolute measurements and certified reference material for iron isotopes using multiple-collector inductively coupled mass spectrometry. Publishing Authors By Initials

T Zhou,M Zhao,J Wang,H Lu,

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Absolute measurements and certified reference material for iron isotopes using multiple-collector inductively coupled mass spectrometry. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Rapid communications in mass spectrometry : RCM

VOLUME: 22

Page Numbers: 717-20

Journal Abbreviation: Rapid Commun. Mass Spectrom.

ISSN: 0951-4198

DAY: 18

MONTH: 02

YEAR: 2008

Absolute measurements and certified reference material for iron isotopes using multiple-collector inductively coupled mass spectrometry. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Absolute measurements and certified reference material for iron isotopes using multiple-collector inductively coupled mass spectrometry.

AFFILIATION: National Institute of Metrology, Beijing 100013, China.

Country: England

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MEDLINETA: Rapid Commun Mass Spectrom

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