Development of a particle-trap preconcentration-soft ionization mass spectrometric technique for the quantification of mercury halides in air

Journal Article


Abstract


  • Measurement of oxidized mercury, Hg(II), in the atmosphere poses a significant analytical challenge as Hg(II) is present at ultra-trace concentrations (picograms per cubic meter air). Current technologies are sufficiently sensitive to measure the total Hg present as Hg(II) but cannot determine the chemical speciation of Hg(II). We detail here the development of a soft ionization mass spectrometric technique coupled with preconcentration onto nano- or microparticle-based traps prior to analysis for the measurement of mercury halides in air. The current methodology has comparable detection limits (4–11 pg m–3) to previously developed techniques for the measurement of total inorganic mercury in air while allowing for the identification of HgX2 in collected samples. Both mercury chloride and mercury bromide have been sporadically detected in Montreal urban and indoor air using atmospheric pressure chemical ionization-mass spectrometry (APCI-MS). We discuss limitations and advantages of the current technique and discuss potential avenues for future research including quantitative trace measurements of a larger range of mercury compounds.

Authors


  •   Deeds, Daniel A. (external author)
  •   Ghoshdastidar, Avik (external author)
  •   Raofie, Farhad (external author)
  •   Guerette, Elise-Andree
  •   Tessier, Alain (external author)
  •   Ariya, Parisa A. (external author)

Publication Date


  • 2015

Citation


  • Deeds, D. A., Ghoshdastidar, A., Raofie, F., Guérette, É., Tessier, A. & Ariya, P. A. (2015). Development of a particle-trap preconcentration-soft ionization mass spectrometric technique for the quantification of mercury halides in air. Analytical Chemistry, 87 (10), 5109-5116.

Scopus Eid


  • 2-s2.0-84929590886

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/2996

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 5109

End Page


  • 5116

Volume


  • 87

Issue


  • 10

Abstract


  • Measurement of oxidized mercury, Hg(II), in the atmosphere poses a significant analytical challenge as Hg(II) is present at ultra-trace concentrations (picograms per cubic meter air). Current technologies are sufficiently sensitive to measure the total Hg present as Hg(II) but cannot determine the chemical speciation of Hg(II). We detail here the development of a soft ionization mass spectrometric technique coupled with preconcentration onto nano- or microparticle-based traps prior to analysis for the measurement of mercury halides in air. The current methodology has comparable detection limits (4–11 pg m–3) to previously developed techniques for the measurement of total inorganic mercury in air while allowing for the identification of HgX2 in collected samples. Both mercury chloride and mercury bromide have been sporadically detected in Montreal urban and indoor air using atmospheric pressure chemical ionization-mass spectrometry (APCI-MS). We discuss limitations and advantages of the current technique and discuss potential avenues for future research including quantitative trace measurements of a larger range of mercury compounds.

Authors


  •   Deeds, Daniel A. (external author)
  •   Ghoshdastidar, Avik (external author)
  •   Raofie, Farhad (external author)
  •   Guerette, Elise-Andree
  •   Tessier, Alain (external author)
  •   Ariya, Parisa A. (external author)

Publication Date


  • 2015

Citation


  • Deeds, D. A., Ghoshdastidar, A., Raofie, F., Guérette, É., Tessier, A. & Ariya, P. A. (2015). Development of a particle-trap preconcentration-soft ionization mass spectrometric technique for the quantification of mercury halides in air. Analytical Chemistry, 87 (10), 5109-5116.

Scopus Eid


  • 2-s2.0-84929590886

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/2996

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 5109

End Page


  • 5116

Volume


  • 87

Issue


  • 10