Determination of chromium(III) and chromium(VI) in water by low Pressure ion chromatography coupled with inductively coupled plasma-mass spectrometry / Jin Haochen in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 4 (07-08/2016)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 100, N° 4 (07-08/2016) . - p. 182-185 Titre : Determination of chromium(III) and chromium(VI) in water by low Pressure ion chromatography coupled with inductively coupled plasma-mass spectrometry Type de document : texte imprimé Auteurs : Jin Haochen, Auteur ; Zhang Xinshen, Auteur ; Wan Xu, Auteur ; Wang Junwei, Auteur Année de publication : 2016 Article en page(s) : p. 182-185 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chromatographie Eaux usées -- Analyse Eaux usées -- Teneur en chrome hexavalent Eaux usées -- Teneur en chrome trivalent Spectrométrie de masse Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : A novel method using low pressure ion chromatography coupled with inductively coupled plasma-mass spectrometry (LPLC-ICP-MS) has been developed for the determination of water-soluble chromium(III) and chromium(VI) in waste water. The low pressure anion exchange column used in this system contained quaternary ammonium groups, which could separate the Cr(III) from Cr(VI). The ICP-MS was used as the detector in this coupled system to detect the concentration of chromium. The linear range of this method was 10.0ng.L-1~1.0mg•L-1 ; the detection limit of Cr(III) was 3.5ng.L-1, Cr(VI) was 9.8ng•L-1(pH=7) ; the precision of Cr(III) was 2.1%, Cr(VI) was 4.6% (n=6). Compared with National Standard Method of China reste the error was ±6%. Note de contenu : - EXPERIMENTAL PROCEDURE : Reagents - Apparatus - Analytical procedure - RESULTS AND DISCUSSION : Composition and concentration of mobile phase - Flow velocity of mobile phase - Potential of hydrogen (pH) of mobile phase - Comparison of different mass to charge ration (m/z) - Reproductibility calibration curve and detection limit En ligne : https://drive.google.com/file/d/1nzvOrJ0TW5q3z2OdZFkOINBY0U6bsi2y/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26795 [article]

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