Bismuth film electrode for anodic stripping voltammetric determination of tin.
作者： Emily A. Hutton , Samo B. Hočevar , Lea Mauko , Božidar Ogorevc
DOI: 10.1016/J.ACA.2006.07.075
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摘要: Abstract The bismuth film electrode (BiFE), in combination with anodic stripping voltammetry, offers convenient measurement of low concentrations tin. procedure involves simultaneous situ formation the on a glassy carbon substrate electrode, together electrochemical deposition tin, non-deaerated model solution containing ions, catechol as complexing agent and metal analyte, followed by an scan. BiFE is characterized attractive electroanalytical performance, two distinct voltammetric signals corresponding to accompanied background contributions. Several experimental parameters were optimized, such concentration ions catechol, potential, time pH solution. In addition, critical comparison given bare mercury electrodes, revealing superior characteristics for exhibited highly linear behavior examined range from 1 100 μg L−1 tin (R2 = 0.997), LoD 0.26 μg L−1 good reproducibility calculated R.S.D. 7.3% 10 μg L−1 (n = 10). As example, practical applicability was tested real sample seawater.
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