| Autor: |
Najar PA; Jawaharlal Nehu Aluminium Research Development and Design Centre, Nagpur 440 023, India. najarp@hotmail.com, Sonali RG, Nimje MT, Rao KV |
| Jazyk: |
angličtina |
| Zdroj: |
Se pu = Chinese journal of chromatography [Se Pu] 2012 Oct; Vol. 30 (10), pp. 1081-8. |
| DOI: |
10.3724/sp.j.1123.2012.05030 |
| Abstrakt: |
Thin layer chromatography (TLC) of cobalt and nickel has been performed on silica gel layers induced with alkali mediated cellulose extract. A novel combination of 10% aqueous solutions of Tween-20 and potassium thiocyanate in 1:1 (v/v) was identified as the best mobile phase for the selective separation of Co2+ from Ni2+ on the impregnated Silica Gel G layers. The chromatographic characteristics of the cations were studied and the limits of detection as well as the limits of quantification for Co2+ and Ni2+ were determined. The quantitative estimation of the cations was achieved from the digital image analysis of respective chromatograms. The proposed quantitative method was successfully applied with 0-0.50% error for the determination of Co2+ from Ni2+ in spiked samples of bauxite, soil and rock containing common cations such as Al3+, Fe2+, Ti4+, Zn2+, Mn2+, Cu2+, Cr6+, Mg2+ etc. under the optimized chromatographic conditions. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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