负催化吸光光度法测定锌

Determination of Zn^(2+) Using Spectrophotometry by Minus Catalytic Effect

研究了在乙醇介质中 Zn2 + 对过氧化氢氧化甲基红褪色反应的负催化作用 ,提出了测定痕量Zn2 +的新方法 ,通过实验确定了测定的最佳条件 .方法简单 ,灵敏度高 ,用于水样中痕量 Zn2 +的测定 ,结果满意 .

A new method for the determination of trace Zn\+\{2+\} was developed.It is based on the minus catalytic effect of Zn\+\{2+\} on the oxidation of methyl red with H\-2O\-2 in the medium of alcohol.The best condition of determination was determined by experiment.It is simply and sensitive.It is used for the determination of Zn\+\{2+\} in water with satisfactory result.