Determination of mercury in sludge and materials used for HG-eliminations from industrial waste waters by zeeman atomic absorption spectrometry after matrix modification with potassium bromide and bromine

Autor:	B. Magyar, H. Vonmont, R. Cicciarelli
Rok vydání:	1982
Předmět:	Bromine Ion exchange Potassium bromide Inorganic chemistry chemistry.chemical_element Industrial waste Analytical Chemistry Mercury (element) law.invention chemistry.chemical_compound chemistry Wastewater law Wet oxidation Atomic absorption spectroscopy Nuclear chemistry
Zdroj:	Mikrochimica Acta. 78:407-418
ISSN:	1436-5073 0026-3672
DOI:	10.1007/bf01197990
Popis:	Mercury was determined by Zeeman Atomic Absorption Spectrometry after matrix modification of urine and waste water by addition of 0.1M HNO3, 0.05M KBr, and 5νl Br2/ml, and after its extraction from sludge, iron sludge and ion exchanger by a mixture containing the same additives. The same samples were also analysed by the cold vapour method after wet oxidation of the samples in closed teflon bombs. The ratio of the corresponding concentrations was 1.21±0.39 (SD) and the concentration range covered 0.1–50000 mg Hg/kg. The analytical powers of both procedures are compared.
Databáze:	OpenAIRE
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