Separation and Spectrophotometric Determination of Microgram Quantities of Mercury Using Diethyldithiocarbamate

Autor:	G.R. Waterbury, E.A. Hakkila
Rok vydání:	1960
Předmět:	Trace Amounts Analytical chemistry chemistry.chemical_element Hypochlorite Copper Analytical Chemistry Mercury (element) Ion Absorbance Metal chemistry.chemical_compound chemistry visual_art visual_art.visual_art_medium Thallium
Zdroj:	Analytical Chemistry. 32:1340-1342
ISSN:	1520-6882 0003-2700
DOI:	10.1021/ac60166a035
Popis:	Microgram amounts of Hg are separated from most metallic ions by extraction of the Hg-diethyldithiocarbamate complex into CCI/sub 4/ from a carbonate buffered solution containing (ethylenedinitrilo)-tetraacetate and cynaide to mask interfering ions. The Hg is determined by measuring the absorbance of the extract at 278 m mu . Of 32 ions investigated only Cu, TI(IfI), and Bi(III) interfere seriously. if more than 200 mu g of Ru are present, it must be removed by hypochlorite oxidation. Based upon data for 14 determinations at each concentration, coefficients of variation of 5 and 2% for 10 and 50 mu g of Hg, respectively, were obtained. One analyst can perform up to 30 determinations per day. (auth)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d9bb1f3ed27fb52d4f77a2dd3ee9a9b9 https://doi.org/10.1021/ac60166a035 Zobrazit plný text záznamu