Methylmercury determination as volatile methylmercury hydride by purge and trap gas chromatography in line with Fourier transform infrared spectroscopy
Article Abstract:
Monomethylmercury is more volatile than inorganic mercuric ions. Methylmercury chloride was combined with aqueous solutions of NaBH4, and the formation of the volatile mercury derivative was studied. This derivatization method was used in conjunction with a Fourier transform infrared spectrometer and a gas chromatograph in the speciation of methylmercury. Hydrogen from NaBH4 reacted with methylmercury chloride in aqueous solution to produce MeHgH, while deuterium from NaBD4 reacted to produce MeHgD.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1992
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Bioaccumulation of methylmercury and transformation of inorganic
Article Abstract:
The concentrations of mercury and methylmercury in several fungi species were measured by means of a variable volume extraction procedure. Experiments were carried out wherein methylmercury was extracted from fungi carpophores C. comatus and C. radians and the humus material beneath them. The total mercury content for the carpophores was also determined. Results the fungi bioaccumulate methylmercury and transform inorganic mercury to methylmercury.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
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Kinetics, doses-response, and excretion of methylmercury in free-living adult Cory's shearwaters
Article Abstract:
The methymercury (MHg) kinetics, dose-responses, and excretion in wild Cory's shearwaters were evaluated. The results indicate that important differences exist between models derived from mammals and the role of seasonal feather molt. The experiment and results are discussed, tabulated and graphed.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 2001
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