Bi(III)4-methylpiperidinedithiocarbamate coprecipitation procedure for separation–pre-concentration of trace metal ions in water samples by flame atomic absorption spectrometric determination

A pre-concentration method was developed for determination of trace amounts of cadmium, copper and lead in water samples by FAAS after coprecipitation by using potassium 4-methylpiperidinedithiocarbamate (K4-MPDC) as a chelating agent and Bi(III) as a carrier element. This procedure is based on filt...

Full description

Saved in:
Bibliographic Details
Published in:Journal of hazardous materials 2007-10, Vol.149 (1), p.160-165
Main Authors: EFENDIOGLU, Aysegül, YAGAN, Mehtap, BATI, Bekir
Format: Article
Language:English
Subjects:
Applied sciences
Bismuth - chemistry
Chelating Agents - chemistry
Chemical engineering
Chemical Precipitation
Continental surface waters
Coprecipitation
Dithiocarbamate
Exact sciences and technology
FAAS
Filtration
Liquid-liquid and fluid-solid mechanical separations
Metals, Heavy - analysis
Metals, Heavy - chemistry
Natural water pollution
Pollution
Pre-concentration
Seawaters, estuaries
Spectrophotometry, Atomic
Thiocarbamates - chemistry
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - chemistry
Water treatment and pollution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A pre-concentration method was developed for determination of trace amounts of cadmium, copper and lead in water samples by FAAS after coprecipitation by using potassium 4-methylpiperidinedithiocarbamate (K4-MPDC) as a chelating agent and Bi(III) as a carrier element. This procedure is based on filtration of the solution containing precipitate on a cellulose nitrate membrane filter following Cd(II), Cu(II) and Pb(II) coprecipitation with Bi(III)4-MPDC and then the precipitates together with membrane filter were dissolved in concentrated nitric acid. The metal contents of the final solution were determined by FAAS. Several parameters including pH of sample solution, amount of carrier element and reagent, standing time, sample volume for precipitation and the effects of diverse ions were examined. The accuracy of the method was tested with standard reference material (MBH, C31XB20 and CRM BCR-32) and Cd, Cu and Pb added samples. Determination of Cd, Cu and Pb was carried out in sea water, river water and tap water samples. The recoveries were >95%. The relative standard deviations of determination were less than 10%.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2007.03.065