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采用自制的挂汞电极进行了阳极溶出伏安法改换溶出介质的可行性研究。在１ｍｏｌ／ＬＨＣｌ＋２ｍｏｌ／Ｌ乙二胺溶液中溶出得到再现性较好的Ｐｂ２＋，Ｔｌ＋离子的溶出峰。表明改换介质可分离重叠峰，消除共存离子干扰和提高分析灵敏度。以ＨＣｌ为电解底液，乙二胺溶液为溶出介质时，Ｐｂ２＋浓度在７２×１０－８～２．９×１０－６ｍｏｌ／Ｌ之间与溶出峰高呈线性关系。此方法用于黄铁矿中Ｐｂ２＋的测定，结果满意
The feasibility of anodic stripping voltammetry for the dissolution of the dissolution medium was investigated using a homemade mercury-attached electrode. In 1mol / LHCl + 2mol / L ethylenediamine solution, the better reproducibility of Pb2 +, Tl + ion dissolution peak. It indicates that the change medium can separate overlapping peaks, eliminate the interference of coexisting ions and enhance the analysis sensitivity. With HCl as the bottom electrolyte and ethylenediamine solution as the dissolution medium, the concentration of Pb2 + was linearly proportional to the peak height of the eluate in the range of 7.2 × 10-8 ~ 2.9 × 10-6mol / L. This method is applied to the determination of Pb2 + in pyrite with satisfactory results