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Tables supporting optimization of on-line hydrogen stable isotope-ratio measurements of halogen- and sulfur-bearing organic compounds using elemental analyzer-chromium/high-temperature conversion-isotope-ratio mass spectrometry

Dates

Time Period
2017
Release Date
2016
Publication Date

Citation

Gehre, Matthias, Renpenning, Julian, Geilmann, Heike, Qi, Haiping, Coplen, T.B., Kümmel, Steffen, Ivdra, Natalija, Brand, W.A., and Schimmelmann, Arndt, 2016, Tables supporting optimization of on-line hydrogen stable isotope-ratio measurements of halogen- and sulfur-bearing organic compounds using elemental analyzer-chromium/high-temperature conversion-isotope-ratio mass spectrometry: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7HD7STB.

Summary

Tabular data demonstrates the performance of a modified reactor setup that enables high-quality hydrogen isotopic analysis of halogen- and sulfur-bearing organics with a modified elemental analyzer–chromium/high temperature conversion reactor that demonstrated an overall hydrogen-recovery of higher than 96 percent. These data support the article by Matthias Gehre, Julian Renpenning, Heike Geilmann, Haiping Qi, Tyler B. Coplen, Steffen Kümmel, Natalija Ivdra, Willi A. Brand, and Arndt Schimmelmann titled "Optimization of on-line hydrogen stable isotope-ratio measurements of halogen- and sulfur-bearing organic compounds using elemental analyzer-chromium/high-temperature conversion-isotope-ratio mass spectrometry (EA–Cr/HTC–IRMS)" and [...]

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Tables_supporting_improved_EA-Cr_HTC_hydrogen-isotope_technique.xml
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Tables_supporting_improved_EA-Cr_HTC_hydrogen-isotope_technique.docx 123.52 KB
Tables_supporting_improved_EA-Cr_HTC_hydrogen-isotope_technique.xlsx 77.31 KB

Purpose

Accurate hydrogen isotopic analysis of halogen- and sulfur-bearing organics has not been possible with traditional high-temperature conversion (HTC) because the formation of hydrogen-bearing reaction products other than molecular hydrogen (H2) is responsible for non-quantitative H2-yields and possible hydrogen isotopic fractionation. The elemental analyzer–chromium/high temperature conversion reactor was substantially modified for the conversion of halogen- and sulfur-bearing samples. The modified reactor setup showed an overall hydrogen-recovery of more than 96 percent for all halogen- and sulfur-bearing organic compounds. Supporting analytical results and other information demonstrates the high quality performance of the modified reactor setup.

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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F7HD7STB

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