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Open Chemistry

formerly Central European Journal of Chemistry

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IMPACT FACTOR 2016 (Open Chemistry): 1.027
IMPACT FACTOR 2016 (Central European Journal of Chemistry): 1.460

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2391-5420
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Volume 13, Issue 1

Issues

Temperature stability of mercury compounds in solid substrates

Matej Sedlar / Majda Pavlin
  • International Postgraduate School Jožef Stefan, Jamova 39, 1000 Ljubljana, Slovenia; Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Arkadij Popovič / Milena Horvat
  • International Postgraduate School Jožef Stefan, Jamova 39, 1000 Ljubljana, Slovenia; Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2014-11-26 | DOI: https://doi.org/10.1515/chem-2015-0051

Abstract

The major aim of the newly adopted Mercury Convention is to reduce global mercury (Hg) emissions to the environment. In high temperature industrial processes, including coal combustion, Hg compounds present as impurities in solid materials are decomposed and evaporated leading to the emission of Hg to the atmosphere. The behaviour of different Hg compounds and their mixtures during heating have been the subject of numerous studies, and is the topic of the present work. Controlled heating can be used to fractionate Hg compounds in solid substrates, offering the possibility of identification and quantification of Hg compounds. In the attempt to develop a method for temperature fractionation of Hg, experiments were conducted with pure Hg compounds, and the compounds mixed with different substrates (SiO2 and CaSO4 • 2H2O), for calibration purposes. Detection was performed by two methods, namely Cold Vapour Atomic Absorption Spectrometry (CV AAS) with Zeeman background correction, and Nier-type Mass Spectrometry with a Knudsen cell (MS). Further investigation is in process.

Graphical Abstract

Keywords : mercury compounds; temperature fractionation; substrate; CV AAS; mass spectrometry

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About the article

Received: 2014-02-10

Accepted: 2014-08-28

Published Online: 2014-11-26


Citation Information: Open Chemistry, Volume 13, Issue 1, ISSN (Online) 2391-5420, DOI: https://doi.org/10.1515/chem-2015-0051.

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© 2015 Matej Sedlar et al.. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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