ThuliumV1, Main, Exploration, bibRecord, 001071

Thulium hydroxide : A new coprecipitant for speciation of chromium in natural water samples

Identifieur interne : 001071 ( Main/Exploration ); précédent : 001070; suivant : 001072

Thulium hydroxide : A new coprecipitant for speciation of chromium in natural water samples

Auteurs : Funda Armagan Aydin [Turquie] ; Mustafa Soylak [Turquie]

Source :

Journal of hazardous materials [ 0304-3894 ] ; 2009.

RBID : Pascal:09-0147839

Descripteurs français

KwdFr :
- Chrome (), Concentration en ions d'hydrogène, Polluants chimiques de l'eau (), Précipitation chimique, Sensibilité et spécificité, Thulium ().
Pascal (Inist)
- Chrome, Concentration en ions d'hydrogène, Polluants chimiques de l'eau, Précipitation chimique, Sensibilité et spécificité, Spéciation, Coprécipitation, Thulium, pH, Limite détection, Boue résiduaire, Préconcentration, Spectrométrie absorption atomique, Devenir polluant.

English descriptors

KwdEn :
- Atomic absorption spectrometry, Chemical Precipitation, Chromium (chemistry), Coprecipitation, Detection limit, Hydrogen-Ion Concentration, Pollutant behavior, Preconcentration, Sensitivity and Specificity, Sewage sludge, Speciation, Thulium (chemistry), Water Pollutants, Chemical (chemistry), pH.
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 3σ criterion were 0.87 μg L^-1 for Cr(III) and 1.18 μg 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%).

Affiliations:

Turquie

Le document en format XML

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<term>Thulium (chemistry)</term>
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<term>Sensibilité et spécificité</term>
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<term>Précipitation chimique</term>
<term>Sensibilité et spécificité</term>
<term>Spéciation</term>
<term>Coprécipitation</term>
<term>Thulium</term>
<term>pH</term>
<term>Limite détection</term>
<term>Boue résiduaire</term>
<term>Préconcentration</term>
<term>Spectrométrie absorption atomique</term>
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<front><div type="abstract" xml:lang="en">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 3σ criterion were 0.87 μg L<sup>-1</sup>
 for Cr(III) and 1.18 μg L<sup>-1</sup>
 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>
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Thulium hydroxide : A new coprecipitant for speciation of chromium in natural water samples

Thulium hydroxide : A new coprecipitant for speciation of chromium in natural water samples

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

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