Mercury-thiourea complex ion chromatography: Advances in system chemistry and applications to environmental mercury speciation analysis

Todd A. Olsen, Tina H. Huang, Ramdas Kanissery, Robert J M Hudson

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Mercury-thiourea complex ion chromatography is the core of a relatively new approach to Hg speciation analysis that is sensitive enough to accurately quantitate monomethyl Hg at ultratrace environmental levels. In this chapter, a detailed description of an updated system chemistry and operating conditions for performing mercury speciation analysis using inductively coupled plasma mass spectrometry are presented. The new operating conditions are very stable, highly-sensitive, and free of problems that afflicted earlier versions of the system. The potential for obtaining accurate results using the system is demonstrated by the excellent performance metrics obtained and the close agreement of these results with consensus values of monomethyl Hg in water and sediment reference materials and inter-lab comparison samples. The ability to quantitate mercuric and monoethyl along with monomethyl forms of Hg is a feature of this approach that likely will prove useful in future studies of environmental systems.

Original languageEnglish (US)
Title of host publicationTrace Materials in Air, Soil, and Water
EditorsKatherine C. Lanigan, Alexa Rihana-Abdallah, Mark A. Benvenuto, Kendra R. Evans, Elizabeth S. Roberts-Kirchhoff
PublisherAmerican Chemical Society
Pages115-151
Number of pages37
ISBN (Electronic)9780841231092
DOIs
StatePublished - Jan 1 2015

Publication series

NameACS Symposium Series
Volume1210
ISSN (Print)0097-6156
ISSN (Electronic)1947-5918

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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  • Cite this

    Olsen, T. A., Huang, T. H., Kanissery, R., & Hudson, R. J. M. (2015). Mercury-thiourea complex ion chromatography: Advances in system chemistry and applications to environmental mercury speciation analysis. In K. C. Lanigan, A. Rihana-Abdallah, M. A. Benvenuto, K. R. Evans, & E. S. Roberts-Kirchhoff (Eds.), Trace Materials in Air, Soil, and Water (pp. 115-151). (ACS Symposium Series; Vol. 1210). American Chemical Society. https://doi.org/10.1021/bk-2015-1210.ch006