VOLTAMMETRIC DETERMINATION OF PENTACHLOROPHENOL AT A GLASSY-CARBON ELECTRODE
VOLTAMMETRIC DETERMINATION OF PENTACHLOROPHENOL AT A GLASSY-CARBON ELECTRODE
复制标题
DOI：
10.1039/an9881300625
复制
发表时间：
1988-04-01
期刊：
影响因子：
4.2
通讯作者：
DIEZ, LMP
中科院分区：
文献类型：
--
作者：
GUIJARRO, EC;YANEZSEDENO, P;DIEZ, LMP
采用不同的伏安技术对水溶液中五氯苯酚在玻碳电极上的氧化过程进行了电分析研究。在1.0 × 10 ~（-5）~ 10.0 × 10 ~（-5）和2.0 × 10 ~（-6）~ 10.0 × 10 ~（-6）mol·l ~（-1）范围内，微分脉冲伏安法测定五氯苯酚的灵敏度为50 mV。当浓度为5.0 × 10 ~（-5）mol·l ~（-1）时，变异系数为2.3%，测定限为1.5 × 10 ~（-6）mol·l ~（-1），检测限为4.5 × 10 ~（-7）mol·l ~（-1）。研究了其他氯酚的影响。将该方法应用于杀菌剂中五氯酚的测定，获得了满意的结果。
An electroanalytical study of the pentachlorophenol oxidation process at a glassy carbon electrode in aqueous solution using different voltammetric techniques has been carried out. The results obtained by differential-pulse voltammetry allowed a method to be developed for the determination of pentachlorophenol in the ranges 1.0 × 10–5–10.0 × 10–5 and 2.0 × 10–6–10.0 × 10–6 mol l–1, using ΔE= 50 mV. The coefficient of variation is 2.3% for a concentration of 5.0 × 10–5, mol l–1, with a limit of determination of 1.5 × 10–6 mol l–1 and a limit of detection of 4.5 × 10–7 mol l–1. The effect of other chlorophenols has been studied. Good results were obtained by applying the proposed differential-pulse voltammetric method to the determination of pentachlorophenol in a commercial fungicide.