Analysis OF Trace Metals In Water By Inductively Coupled Plasma Emission Spectrometry Using Sodium Dibenzyldithiocarbamate For Preconcentration
作者:
ColeL. Smith,
JerryM. Motooka,
WileyR. Willson,
期刊:
Analytical Letters
(Taylor Available online 1984)
卷期:
Volume 17,
issue 15
页码: 1715-1730
ISSN:0003-2719
年代: 1984
DOI:10.1080/00032718408065345
出版商: Taylor & Francis Group
关键词: inductively coupled plasma emission spectrometry;coprecipitation;trace metals;preconcentration
数据来源: Taylor
摘要:
Since concentrations of trace elements in most natural waters seldom exceed the μg/L level, analysis of trace elements in natural waters by inductively coupled plasma emission spectrometry (ICP) requires a preconcentration procedure. The elements Ag, Bi, Cd, Co, Cu, Fe, Mo, Ni, Pb, Sn, V, W, and Zn were separated and concentrated from 500 mL of water by coprecipitating them with sodium dibenzyldithiocarbamate (NaDBDTC) using nickel or silver as a carrier. The precipitated trace elements were collected on a membrance filter, redissolved from the filter with hot nitric and hydrochloric acids, and analyzed using ICP. Recoveries for all the trace elements except tungsten exceeded 80%. Coprecipitation of trace elements with NaDBDTC eliminated the use of difficult-to-inject organic solvents, and NaDBDTC coprecipitated a wider array of trace elements than ammoniumpyrrolidinedithiocarbamate (APDC), another commonly used coprecipitate.
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