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极谱吸附波测定金属锌中微量镉
Determination of trace cadmium in zinc by polarographic adsorptive wave
【摘要】 在pH5 5的HAc -NaAc -抗坏血酸 -KI溶液中 ,用单扫描示波极谱法获得镉与KI络合物极谱吸附波 ,其峰电位在 -0 73V( vs SCE) ,镉在 0 4~ 80 μg/5 0mL范围 ,峰电流与镉的浓度呈良好的线性关系 ,方法用于金属锌中镉的测定 ,获得令人满意的结果
【Abstract】 A polarographic adsorptive wave of Cd KI complex was obtained by using single sweep polarography in the solution of HAc NaAc ascorbic acid KI at pH5 5 The peak potential is -0 73V(vs SCE) The linear relationship between the peak height and the concentration was found in the range of 0 4-80μg/50mL for Cd The method has been applied to the determination of cadmium in zinc with satisfactory results
- 【文献出处】 冶金分析 ,Metallurgical Analysis , 编辑部邮箱 ,2001年05期
- 【分类号】TG115.3
- 【被引频次】7
- 【下载频次】42