Journal of Industrial and Engineering Chemistry, Vol.20, No.5, 3214-3216, September, 2014
A new modified multiwalled carbon nanotube paste electrode for quantification of tin in fruit juice and bottled water samples
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In this paper, a new modified multiwalled carbon nanotube electrode is reported for anodic stripping voltammetry quantification of tin. The electrode is based on the use of N-Nitrozo-N-Phenylhydrox-ylamine (cupferron) and multiwalled carbon nanotube. The influence of supporting electrolytes, deposition time, and applied potential on the sensitivity of electrode were investigated. The detection limit was 0.12 ng/ml and the RSD at a concentration level of 50 ng/ml, was 1.5%. The electrode has been applied for the determination of tin in fruit juice and bottled water with the satisfactory results.
Keywords:Sn;Anodic stripping voltammetry;N-nitrozo-N-phenylhydroxylamine;Fruit juice and bottled water;Multiwalled carbon nanotube
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