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Sampling and determination of gas phase divalent mercury in the air using a KCl coated denuder

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Abstract

KCl coated denuders were employed for the measurement of divalent mercury (Hg2+) species in the air. Laboratory tests show that gaseous Hg2+ can be collected by the denuder with an average efficiency of 98% and elemental Hg will pass through it freely. Hg2+ trapped in the denuder can be quantitatively extracted by 1 mol/L HCl and analyzed by the method of SnCl2 reduction-CVAFS determination. Hg2+ concentrations of 0.04–0.15 ng m–3 corresponding to about 2–9% of the total gaseous mercury in the ambient air were determined at several sampling locations.

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Authors and Affiliations

  1. Department of Inorganic Chemistry, Chalmers University of Technology and University of Göteborg, S-412 96, Göteborg, Sweden, , , , , , SE

    Z. Xiao, J. Sommar, S. Wei & O. Lindqvist

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  1. Z. Xiao
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  2. J. Sommar
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  3. S. Wei
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  4. O. Lindqvist
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Received: 24 September 1996 / Revised: 14 January 1997 / Accepted: 18 January 1997

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Xiao, Z., Sommar, J., Wei, S. et al. Sampling and determination of gas phase divalent mercury in the air using a KCl coated denuder. Fresenius J Anal Chem 358, 386–391 (1997). https://doi.org/10.1007/s002160050434

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  • DOI: https://doi.org/10.1007/s002160050434

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