阳极溶出伏安法在水质汞在线监测仪中的应用

Application of Anodic Stripping Voltammetry for On-line Monitoring of Mercury in Waters

建立了基于阳极溶出伏安法的环境友好的汞在线监测方法,采用标准比较法进行定量,通过标准样品及实际样品测定验证方法。结果表明,环境标准样品测定值与标准值一致;水样的加标回收率可达为81%~96%;该在线监测方法具有很好的分析能力,可用于地表水和工业废水中汞的现场、快速、连续、准确监测。

An environmental-friendly on-line monitoring technology based on anodic stripping voltammetry for measuring mercury in waters was established. The quantitative analysis of mercury was conducted by standard comparison method, and the precision of the method was validated by environmental standard samples and three water samples. According to the determination results, the determination results of two environmental standard results were consistent with the standard values, the recoveries of water samples ranged from 81%-96 %. The method was rapid, sensitive and accurate, which can be applied for the continuous on-line monitoring of mercury contents in surface water and industrial waste water.