Fully automated, high-precision instrumentation for the isotopic analysis of tropospheric N2O using continuous flow isotope ratio mass spectrometry.. Rapid communications in mass spectrometry : RCMRapid communications in mass spectrometry : RCM. 27(15):1723-38.. 2013.
High-Precision Measurements of 33S and 34S Fractionation during SO2 Oxidation Reveal Causes of Seasonality in SO2 and Sulfate Isotopic Composition.. Environmental science & technologyEnvironmental science & technology. 47(21):12174-83.. 2013.
Manganese-oxidizing photosynthesis before the rise of cyanobacteria. Proceedings of the National Academy of SciencesProceedings of the National Academy of Sciences. 110(28). 2013.
Vibronic origin of sulfur mass-independent isotope effect in photoexcitation of SO2 and the implications to the early earth's atmosphere.. Proceedings of the National Academy of Sciences of the United States of AmericaProceedings of the National Academy of Sciences of the United States of America. 110(44):17697-702.. 2013.
Effects of Iron and Nitrogen Limitation on Sulfur Isotope Fractionation during Microbial Sulfate Reduction.. Applied and environmental microbiologyApplied and environmental microbiology. :AEM.01842-12-.. 2012.
Effects of Iron and Nitrogen Limitation on Sulfur Isotope Fractionation during Microbial Sulfate Reduction. Applied and Environmental Microbiology.. 2012.
Excitation band dependence of sulfur isotope mass-independent fractionation during photochemistry of sulfur dioxide using broadband light sources. Geochimica et Cosmochimica ActaGeochimica et Cosmochimica Acta. 94:238-253.. 2012.
A multiple sulfur and organic carbon isotope record from non-conglomeratic sedimentary rocks of the Mesoarchean Witwatersrand Supergroup, South Africa. Precambrian ResearchPrecambrian Research. 216-219:208-231.. 2012.
Sulfur isotope fractionation during oxidation of sulfur dioxide: gas-phase oxidation by OH radicals and aqueous oxidation by H2O2, O3 and iron catalysis. Atmospheric Chemistry and PhysicsAtmospheric Chemistry and Physics. 12(1):407-423.. 2012.
Sulfur mass-independent fractionation in liquid phase chemistry: UV photolysis of phenacylphenylsulfone as a case study. Geochimica et Cosmochimica ActaGeochimica et Cosmochimica Acta.. 2012.
Sulfur-33 constraints on the origin of secondary pyrite in altered oceanic basement. Geochimica et Cosmochimica ActaGeochimica et Cosmochimica Acta. 87:323-340.. 2012.
Decoupling of O and Pb isotope systems of uraninite in the early Proterozoic conglomerates in the Elliot Lake district. Chemical GeologyChemical Geology. 288(1-2):1-13.. 2011.
Effect of electron donors on the fractionation of sulfur isotopes by a marine Desulfovibrio sp.. Geochimica et Cosmochimica ActaGeochimica et Cosmochimica Acta. 75(15):4244-4259.. 2011.
Large sulfur isotope fractionation does not require disproportionation. ScienceScience. 333(6038):74-77.. 2011.
Multiple-sulfur isotope effects during photolysis of carbonyl sulfide. Atmospheric Chemistry and PhysicsAtmospheric Chemistry and Physics. 11(19):10283-10292.. 2011.
Formation and stability of oxygen-rich bubbles that shape photosynthetic mats. GeobiologyGeobiology. 8(1):45-55.. 2010.
Formation and stability of oxygen-rich bubbles that shape photosynthetic mats. GeobiologyGeobiology. 8:45-55.. 2010.
Lithofacies control on multiple-sulfur isotope records and Neoarchean sulfur cycles. Precambrian …Precambrian …. 169(1-4):58-67.. 2009.
Origin of two distinct multiple-sulfur isotope compositions of pyrite in the 2.5 Ga Klein Naute Formation, Griqualand West Basin, South Africa. Precambrian ResearchPrecambrian Research. 169(1-4):48-57.. 2009.
Multiple-sulphur isotope biosignatures. Space Science ReviewsSpace Science Reviews. 135(1-4):203-220.. 2008.
Quadruple sulfur isotope analysis of ca. 3.5 Ga Dresser Formation: New evidence for microbial sulfate reduction in the early Archean. Geochimica et Cosmochimica …Geochimica et Cosmochimica …. 72(23):5675-5691.. 2008.
Sulfur isotope evidence for microbial sulfate reduction in altered oceanic basalts at ODP Site 801. Earth and Planetary Science LettersEarth and Planetary Science Letters. 268(1-2):110-123.. 2008.
S-33 constraints on the seawater sulfate contribution in modern seafloor hydrothermal vent sulfides. Geochimica et cosmochimica …Geochimica et cosmochimica …. 71(5):1170-1182.. 2007.
Early evolution of atmospheric oxygen from multiple-sulfur and carbon isotope records of the 2.9 Ga Mozaan Group of the Pongola Supergroup, Southern Africa. South African Journal of GeologySouth African Journal of Geology. 109(1-2):97-108.. 2006.
High precision analysis of all four stable isotopes of sulfur (32S, 33S, 34S and 36S) at nanomole levels using a laser fluorination isotope-ratio-monitoring gas chromatography–mass spectrometry. Chemical GeologyChemical Geology. 225(1-2):30-39.. 2006.