| Titre : |
Development of a reagent kit for rapid determination of chromium (VI) |
| Type de document : |
texte imprimé |
| Auteurs : |
Ding Shaolan, Auteur ; Xie Linhua, Auteur ; Dong Lingxiao, Auteur ; Liu Jing, Auteur ; Zhao Liguo, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 175-179 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Chimie -- Essais et réactifs
Colorimétrie
Eaux usées -- Analyse
Eaux usées -- Teneur en chrome hexavalent
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
This paper uses diphenyl carbazide (DPC) dissolved in water with NaCl, which salves the problem that DPC must be dissolved in organic solvants. At the same time, instead of the phosphoric acid medium used normally in the Chinese National Standard Method (GB7467-87), sulfamic acid was made into a solid mixed chromogenic agent. A standard colourimetric board was made and photographed alter the screening for chromium (VI) concentration. The standard colourimetric board and the solid mixed chromogenic reagents and other instruments were assembled into the reagent bottles as the reagent kit for rapid determination of chromium 0/1). This article examined the impact of the coexisting ions Fe3+, Mo6+, Ni2+ and Ca2+ on the chromium (VI) determination with the reagent bottles and determined the composition of the solid mixed chromogenic agent and tested the chromium (VI) optimal concentration and the upper iimit of coexisting ions permitted amount. The reagent kit was applied to the actuel wastewater and evaluated as well. |
| Note de contenu : |
- EXPERIMENTAL PROCEDURES : Chemical reagents and instrumentation - The development of the reagent bottle method
- RESULTS AND DISCUSSION : The preparation of solid mixed chromogenic agent - Results of standard colourimetric board development - Impact of co-existing ions - Measurements of the actual water samples |
| En ligne : |
https://drive.google.com/file/d/1o1EC2FmkAxJQx1daKTY24LkNH5XXLjoU/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26794 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 100, N° 4 (07-08/2016) . - p. 175-179
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