Traceability for mercury measurements - MeTra
- The aim of this work is to develop measurement procedures to provide full traceability and robust uncertainty statements for dissolved elemental mercury (Hg(0)), inorganic mercury (Hg(II)) and methyl-mercury (MeHg) in freshwater and sea water, and inorganic mercury (Hg(II)) and methyl-mercury (MeHg) in biota. Accurate measurements with low uncertainties e.g. <50 % at the EQS level are required to assess concentration levels and trends in these important environmental reservoirs for mercury. In particular this work aims to: Develop and validate primary measurement procedures for Hg speciation (Hg(II), MeHg and Hg(0)) in fresh and sea waters at sub-ng levels in the presence of suspended particular matter and/or colloidal fractions, Apply the developed IDMS procedures in water in order to evaluate possible artefacts associated with sample collection and preparation, preserving speciation and/or correcting for possible post-sampling interconversions, Develop and validate primaryThe aim of this work is to develop measurement procedures to provide full traceability and robust uncertainty statements for dissolved elemental mercury (Hg(0)), inorganic mercury (Hg(II)) and methyl-mercury (MeHg) in freshwater and sea water, and inorganic mercury (Hg(II)) and methyl-mercury (MeHg) in biota. Accurate measurements with low uncertainties e.g. <50 % at the EQS level are required to assess concentration levels and trends in these important environmental reservoirs for mercury. In particular this work aims to: Develop and validate primary measurement procedures for Hg speciation (Hg(II), MeHg and Hg(0)) in fresh and sea waters at sub-ng levels in the presence of suspended particular matter and/or colloidal fractions, Apply the developed IDMS procedures in water in order to evaluate possible artefacts associated with sample collection and preparation, preserving speciation and/or correcting for possible post-sampling interconversions, Develop and validate primary measurement procedures for the accurate quantification of Hg(II) and MeHg in biota, using samples from the Federal Environmental Specimen Bank, Apply the developed IDMS procedures in biota in order to evaluate the effect of different treatments for fish sample preparation.…
Autor*innen: | Christian Piechotta |
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Koautor*innen: | Ina Fettig |
Dokumenttyp: | Vortrag |
Veröffentlichungsform: | Präsentation |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2016 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Sanitär- und Kommunaltechnik; Umwelttechnik |
Freie Schlagwörter: | Methyl mercury |
Veranstaltung: | EMRP MeTra Meeting |
Veranstaltungsort: | Geel, Belgium |
Beginndatum der Veranstaltung: | 01.02.2016 |
Enddatum der Veranstaltung: | 03.02.2016 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 01.12.2016 |
Referierte Publikation: | Nein |
Eingeladener Vortrag: | Nein |