Determination of Cr(VI) in leather by the emulsion liquid membrane method / Liu Anju in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 91, N° 5 (09-10/2007)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 91, N° 5 (09-10/2007) . - p. 183-187 Titre : Determination of Cr(VI) in leather by the emulsion liquid membrane method Type de document : texte imprimé Auteurs : Liu Anju, Auteur ; Ding Shaolan, Auteur ; Zhao Chuanchuan, Auteur ; Ren Huijun, Auteur ; Zhao Quanyong, Auteur Année de publication : 2007 Article en page(s) : p. 183-187 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuir -- Teneur en chrome hexavalent Cuirs et peaux -- Analyse Membrane liquide en émulsion Séparation (technologie) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : This article adopted the optimum liquid membrane scheme to carry out an emulsion liquid membrane separation and to determine the amount of Cr(VI) in the finished leather. The experimental results reveal that the emulsion liquid membrane method can effectively separate Cr(VI) from the leather extract to remove the colour of the extract and also avoid the effects of Cr(III) being transformed into Cr(VI). It can determine the amounts of Cr in the pre-separating and post-separating solution, that is to calculate the amount of Cr(VI) in the leather sample. This method is accurate and easy to use. Its indexed recovery rate is 95.6% - 106%. Note de contenu : - EXPERIMENTAL PROCEDURE : Experimental reagents, apparatus and equipment - Experiment - RESULTS AND DISCUSSION : Experimental results and discussion of the amount of chrome in the leather extract as found by the emulsion liquid membrane method - Testing results of Cr(VI) recovery rate in the extractable liquid tested separation by emulsion liquid method. - Table 1 : Experimental results of the amounts of Cr in leather extract tested by emulsion liquid membrane method - Table 2 : Recovery rate test results En ligne : https://drive.google.com/file/d/1X9EF04nWaoCACLrt9UZQJyidEtyIcpUb/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39009 [article]

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