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地质试样中常常同时提出分析铜铅锌镉的要求,以往采用的分析方法是分别称样在不同的底液中进行测定。通过试验发现在100克氯化钠/升、5克盐酸羟胺/升、10毫升盐酸/升的混合底液中铜铅锌镉在示波极谱上采用三电极系统有分辩清晰的还原波和氧化波. 相应的电位是: 原点电位: Cu:0.05V,Pb:0.30V,Zn:0.80V,Cd:-0.55V 峰电位:
Geological samples are often proposed at the same time the analysis of copper, lead, zinc and cadmium requirements, the analytical method used in the past are respectively weighed in different end of liquid determination. Through the test found that in the 100 g of sodium chloride / liter, 5 grams of hydroxylamine hydrochloride / liter, 10 ml of hydrochloric acid / liter of mixed base solution of copper, lead, zinc and cadmium in the oscillopolarographic three-electrode system has distinctly reduced wave and The corresponding potentials are: Potential at Origin: Cu: 0.05 V, Pb: 0.30 V, Zn: 0.80 V, Cd: -0.55 V Peak potential: