Speciation of mercury in natural waters by capillary gas chromatography with a microwave-induced plasma emission detector following preconcentration using a dithiocarbamate resin microcolumn installed in a closed flow injection system
In: Analyst (London. 1877. Print), Jg. 118 (1993), Heft 8, S. 1007-1013
Online
academicJournal
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Zugriff:
A method for the simultaneous determination of mercury species at sub-ng l-1 levels in natural waters is described. The detection limits are 0.05 ng l-1 for methyl- and ethylmercury and 0.15 ng l-1 for inorganic mercury. Methyl-, ethyl- and inorganic mercury are first preconcentrated on a dithiocarbamate resin packed in a miniature 60 μl column incorporated in a closed and semi-automated flow injection system. The mercury species, which are quantitatively enriched on the resin, are completely eluted with an acidic thiourea solution, extracted into toluene as diethyldithiocarbamate complexes and butylated with a Grignard reagent.
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Speciation of mercury in natural waters by capillary gas chromatography with a microwave-induced plasma emission detector following preconcentration using a dithiocarbamate resin microcolumn installed in a closed flow injection system
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Autor/in / Beteiligte Person: | EMTEBORG, H ; BAXTER, D. C ; FRECH, W |
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Zeitschrift: | Analyst (London. 1877. Print), Jg. 118 (1993), Heft 8, S. 1007-1013 |
Veröffentlichung: | Cambridge: Royal Society of Chemistry, 1993 |
Medientyp: | academicJournal |
Umfang: | print, 20 ref |
ISSN: | 0003-2654 (print) |
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