Thulium hydroxide: a new coprecipitant for speciation of chromium in natural water samples.
Identifieur interne : 000504 ( PubMed/Checkpoint ); précédent : 000503; suivant : 000505Thulium hydroxide: a new coprecipitant for speciation of chromium in natural water samples.
Auteurs : Funda Armagan Aydin [Turquie] ; Mustafa SoylakSource :
- Journal of hazardous materials [ 0304-3894 ] ; 2009.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Chromium, Thulium, Water Pollutants, Chemical.
- Chemical Precipitation, Hydrogen-Ion Concentration, Sensitivity and Specificity.
Abstract
A coprecipitation procedure has been established for chromium speciation in natural water samples. The procedure is based on the coprecipitation of Cr(III) on thulium hydroxide precipitate. After reduction of Cr(VI) to Cr(III) by using potassium iodide, the presented method was applied to the determination of the total chromium. The level of Cr(VI) is calculated by difference of total chromium and Cr(III) levels. The procedure was optimized for some analytical parameters including pH, sample volume, matrix effects, etc. The detection limits based on 3sigma criterion were 0.87 microg L(-1) for Cr(III) and 1.18 microg L(-1) for Cr(VI). The procedure presented was validated by the analysis of BCR-144R Sewage Sludge (domestic origin). The presented method was applied for the speciation of chromium in environmental sample with satisfactory results (recoveries>95%, R.S.D.s<10%).
DOI: 10.1016/j.jhazmat.2008.06.011
PubMed: 18621477
Affiliations:
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The procedure is based on the coprecipitation of Cr(III) on thulium hydroxide precipitate. After reduction of Cr(VI) to Cr(III) by using potassium iodide, the presented method was applied to the determination of the total chromium. The level of Cr(VI) is calculated by difference of total chromium and Cr(III) levels. The procedure was optimized for some analytical parameters including pH, sample volume, matrix effects, etc. The detection limits based on 3sigma criterion were 0.87 microg L(-1) for Cr(III) and 1.18 microg L(-1) for Cr(VI). The procedure presented was validated by the analysis of BCR-144R Sewage Sludge (domestic origin). The presented method was applied for the speciation of chromium in environmental sample with satisfactory results (recoveries>95%, R.S.D.s<10%).</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">18621477</PMID><DateCreated><Year>2008</Year><Month>12</Month><Day>22</Day></DateCreated><DateCompleted><Year>2009</Year><Month>04</Month><Day>07</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0304-3894</ISSN><JournalIssue CitedMedium="Print"><Volume>162</Volume><Issue>2-3</Issue><PubDate><Year>2009</Year><Month>Mar</Month><Day>15</Day></PubDate></JournalIssue><Title>Journal of hazardous materials</Title><ISOAbbreviation>J. Hazard. Mater.</ISOAbbreviation></Journal><ArticleTitle>Thulium hydroxide: a new coprecipitant for speciation of chromium in natural water samples.</ArticleTitle><Pagination><MedlinePgn>1228-32</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.jhazmat.2008.06.011</ELocationID><Abstract><AbstractText>A coprecipitation procedure has been established for chromium speciation in natural water samples. The procedure is based on the coprecipitation of Cr(III) on thulium hydroxide precipitate. After reduction of Cr(VI) to Cr(III) by using potassium iodide, the presented method was applied to the determination of the total chromium. The level of Cr(VI) is calculated by difference of total chromium and Cr(III) levels. The procedure was optimized for some analytical parameters including pH, sample volume, matrix effects, etc. The detection limits based on 3sigma criterion were 0.87 microg L(-1) for Cr(III) and 1.18 microg L(-1) for Cr(VI). The procedure presented was validated by the analysis of BCR-144R Sewage Sludge (domestic origin). 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