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Mitchell GD, Bell AA. Accurate and Precise Coulometric Determination of Sulfur Dioxide in Compressed Gas Mixtures. J Res Natl Inst Stand Technol. 1991;96(5):541-546doi: 10.6028/jres.096.030.
Mitchell, G. D., & Bell, A. A. (1991). Accurate and Precise Coulometric Determination of Sulfur Dioxide in Compressed Gas Mixtures. Journal of research of the National Institute of Standards and Technology, 96(5), 541-546. https://doi.org/10.6028/jres.096.030
Mitchell, G D, and Bell, A A. "Accurate and Precise Coulometric Determination of Sulfur Dioxide in Compressed Gas Mixtures." Journal of research of the National Institute of Standards and Technology vol. 96,5 (1991): 541-546. doi: https://doi.org/10.6028/jres.096.030
Mitchell GD, Bell AA. Accurate and Precise Coulometric Determination of Sulfur Dioxide in Compressed Gas Mixtures. J Res Natl Inst Stand Technol. 1991 Sep-Oct;96(5):541-546. doi: 10.6028/jres.096.030. PMID: 28184128; PMCID: PMC4927230.
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J Res Natl Inst Stand Technol. 1991 Sep-Oct;96(5):541-546. doi: 10.6028/jres.096.030.

Accurate and Precise Coulometric Determination of Sulfur Dioxide in Compressed Gas Mixtures.

Journal of research of the National Institute of Standards and Technology

G D Mitchell, A A Bell

Affiliations

  1. National Institute of Standards and Technology, Gaithersburg, MD 20899.

PMID: 28184128 PMCID: PMC4927230 DOI: 10.6028/jres.096.030

Abstract

Coulometry has been established as an important and reliable method for the determination of acidic compounds. The analytical method and simple apparatus described here arc applied to the precise and accurate determination of sulfur dioxide in nitrogen, specifically in compressed gas cylinders at nominal concentrations of 50 and 100 µmol/mol (ppm). This method is constant current coulometry where the magnitude of the current is set by the balance between the electrochemical generation of OH-, the flow of SO

Keywords: acid rain; analysis of gases; compressed gas; coulometry; sulfur dioxide

References

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