阳极溶出伏安法测定天然水、岩石矿物中痕量铊

Determination of Trace Thallium in Ores and Natural Waters by Anodic Stripping Voltammetry

天然水、岩石矿物中铊含量很低,已有的分光光度法,原子吸收法和中子活化法等测定痕量铊,有灵敏度低,分析手续繁琐,且仪器昂贵等弱点。阳极溶出伏安法测定铊灵敏度可达3.5×10M。所以,近年来有人用阳极溶出伏安法测定痕量铊,但直接测定干扰严重,必须事先用离子交换。

Trace Tl in natural waters and ores can be detected by anodic stripping voltammetry at mercury film electrode. Other ions do not affect the determination of Tl in alkaline solution.