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玻璃碳汞膜电极阳极溶出伏安法近年来开始应用于水环境化学中金属离子存在状态的研究。我们应用此法对天然水中“自由”铅离子和络合铅离子以及铅的总量进行了测定。 (一)仪器、试剂和汞膜镀法所用极谱仪为AD-1型,玻璃碳电极为XBD-1型。参比电极和电解池见文献。蒸馏水经石英亚沸蒸馏器纯化三次。所用试剂除特别注明的而外,均为分析纯。电极镀汞膜方法:将玻璃碳电极用细金相砂纸抛光至表面光滑无裂纹。将电极用1:1硝酸浸泡后,用蒸馏水洗涤。在
Glassy carbon mercury film electrode anodic stripping voltammetry in recent years began to apply water environment chemistry in the presence of metal ions. We applied this method to determine the total amount of “free” lead ions and complexing lead ions and lead in natural waters. (A) instruments, reagents and mercury membrane plating method used for the AD-1 type, glassy carbon electrode for the XBD-1 type. Reference electrode and electrolytic cell see literature. Distilled water was purified three times by a quartz sub-boiling still. The reagents used are of analytical grade unless otherwise stated. Electrode mercury film method: the glassy carbon electrode polished with fine gold sandpaper to smooth the surface without cracks. The electrode was soaked with 1: 1 nitric acid, washed with distilled water. in