Use of negative ion mass spectrometry for simultaneous determination of sulfur isotope ratios δ33S and δ34S

Stanisław Hałas, Tomasz Pieńkos, Andrzej Pelc, Artur Wójtowicz

Abstract


We describe a newly constructed dual inlet system and triple collector for precision study of sulfur isotope anomalies, Δ33S, using negative ion mass spectrometry. SO2 gas is admitted to the ion source where it is ionized ether to SO- or S- by low energy electrons (resonant ionization) and the ion beam is analyzed by a single focusing magnetic analyzer. Another gas which can be used for  δ33S and δ34S analysis by negative ion mass spectrometry  is SF6 on mass spectrum of SF5- ions.

Keywords


isotope anomalies; terrestrial minerals; sulfates; sulfides

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References


Bigeleisen J & Mayer MG. 1947. Calculation of equilibrium constants for isotopic exchange reactions. J. Chem. Phys. 15:261–67

Claypool GC, Holser WT, Kaplan IR, Sakai H & Zak I. 1980. The age curves of sulfur and oxygen isotopes in marine sulfate and their mutual interpretation, Chem. Geol. 28:199–260

Eiler JM, Bergquist B, Bourg I, Cartigny P, Farquhar J, Gagnon A, Guo W, Halevy I, Hofmann A, Larson TE, Levin N, Schauble EA and Stolper D. 2014. Frontiers of stable isotope geosciences, Chemical Geology 327:119–143

Farquhar J, Bao H, Thiemens M. 2000. Atmospheric influence of Earth’s earliest sulfur cycle, Science 289:756-758

Hałas S. 1979. An automatic inlet system with pneumatic changeover valves for isotope ratio mass spectrometer. J. Phys E: Sci. Instrum. 12: 418 – 421

Hałas S. 1980, 1982. An automatic inlet system for a mass spectrometer (In Polish). Patent description P.204655 (14.02.1978) and Patent Nr 106 824

Hałas S. 2002. Źródła jonów ujemnych w spektrometrach mas. Prace Naukowe Politechniki Warszawskiej z. 143: 53–63

Halas S and Szaran J. 1999. Low temperature thermal decomposition of sulfates to SO2 for on-line 34S/32S analysis, Analytical Chemistry 71: 3254-3257

Holser WT. 1977. Catastrphic chemical events in the history of ocean, Nature 267:399–403

Hulston JR, Thode HG. 1965. Variations in the S33, S34, and S36 contents of meteorites and their relation to chemical and nuclear effects. J. Geophys. Res. 70:3475–84

Dông P, Tiên PM. 1989. Isotopic rations otherwise measured, In: P. Longevialle (editor) Advances in Mass Spectrometry. Vol. 11B:1812-1813, Heyden & Son Ltd, London.

Thiemens MH. 2006. History and applications of mass-independent isotope effects. Ann. Rev. Earth Planet. Sci. 34:217–62

Robinson BW and Kusakabe M. 1975. Quantitative preparation of sulfur dioxide, for 34S/32S analyses, from sulfides by combustion with cuprous oxide. Analytical Chemistry 47:179-1181.

Thiemens MH & Shaheen R. 2013. Mass-Independent Isotopic Composition of Terrestrial and Extraterrestrial Materials, Treatise in Geochemistry 2nd Edition, Elsevier

Urey HC. 1947. The thermodynamic properties of isotopic substances. J. Chem. Soc. London. 1947:562–581




DOI: http://dx.doi.org/10.17951/aaa.2015.70.77
Date of publication: 2016-04-29 12:28:30
Date of submission: 2016-01-08 15:10:20


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Copyright (c) 2016 Stanisław Hałas, Tomasz Pieńkos, Andrzej Pelc, Artur Wójtowicz

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