Zhen W, Qiang C
Department of Chemistry, Xiamen University, Xiamen, People's Republic of China.
Talanta. 1987 Jul;34(7):657-60. doi: 10.1016/0039-9140(87)80083-8.
An equation for the current in differential-pulse anodic-stripping voltammetry at tubular electrodes is derived. Application of a glassy-carbon tubular electrode to determination of traces of bismuth in environmental water samples by differential-pulse anodic-stripping voltammetry is described. In hydrochloric acid medium, the stripping peak current is proportional to the concentration of bismuth in the range 2-100 ng/ml, with a deposition time of 3-10 min. The detection limit is 0.5 ng/ml.
推导了管状电极微分脉冲阳极溶出伏安法中电流的方程。描述了玻碳管状电极在微分脉冲阳极溶出伏安法测定环境水样中痕量铋的应用。在盐酸介质中，沉积时间为3 - 10分钟时，溶出峰电流与2 - 100 ng/ml范围内铋的浓度成正比。检测限为0.5 ng/ml。
