A novel nickel stripper using ammonia as the key component was developed to substitute cyanide for removing nickel film from iron substrates. Its compositions are: ammonia 150 g/L, hydrogen peroxide 50 g/L, ammonium c...A novel nickel stripper using ammonia as the key component was developed to substitute cyanide for removing nickel film from iron substrates. Its compositions are: ammonia 150 g/L, hydrogen peroxide 50 g/L, ammonium chloride 100 g/L, EDTA 7.5 g/L, copper chloride 15 g/L and glucopyrone 1.2 g/L. The optimum operating conditions are: pH 9.511, temperature 4050 ℃ and stripping time 1 h. It shows many advantages over the traditional cyanide stripper including no toxicity, mild operation, lower cost, larger holding capacity, faster stripping rate and good protection for the base metal, and can meet the technical requirements in industry.展开更多
以铜修饰氰桥配位聚合物复合玻碳电极（Cu CME）为工作电极,利用阴极溶出伏安法检测H2O2。实验结果证明,该复合修饰电极是对H2O2有较好的感应,检测H2O2有较明显的峰形,操作简单快捷。在最佳的实验条件下,H2O2的峰电流值和其浓度在0.5-16...以铜修饰氰桥配位聚合物复合玻碳电极（Cu CME）为工作电极,利用阴极溶出伏安法检测H2O2。实验结果证明,该复合修饰电极是对H2O2有较好的感应,检测H2O2有较明显的峰形,操作简单快捷。在最佳的实验条件下,H2O2的峰电流值和其浓度在0.5-160 m M的范围内呈双对数的线性关系,线性相关系数达到0.9986。此外,该复合修饰电极在灵敏度,重现性和稳定性等方面都有很好的性能。展开更多
文摘A novel nickel stripper using ammonia as the key component was developed to substitute cyanide for removing nickel film from iron substrates. Its compositions are: ammonia 150 g/L, hydrogen peroxide 50 g/L, ammonium chloride 100 g/L, EDTA 7.5 g/L, copper chloride 15 g/L and glucopyrone 1.2 g/L. The optimum operating conditions are: pH 9.511, temperature 4050 ℃ and stripping time 1 h. It shows many advantages over the traditional cyanide stripper including no toxicity, mild operation, lower cost, larger holding capacity, faster stripping rate and good protection for the base metal, and can meet the technical requirements in industry.
文摘以铜修饰氰桥配位聚合物复合玻碳电极（Cu CME）为工作电极,利用阴极溶出伏安法检测H2O2。实验结果证明,该复合修饰电极是对H2O2有较好的感应,检测H2O2有较明显的峰形,操作简单快捷。在最佳的实验条件下,H2O2的峰电流值和其浓度在0.5-160 m M的范围内呈双对数的线性关系,线性相关系数达到0.9986。此外,该复合修饰电极在灵敏度,重现性和稳定性等方面都有很好的性能。
