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目的改进生活饮用水中锰的检测方法(过硫酸铵法)。方法在原法的基础上减少硫酸汞的用量,由75 g/L改为3.75 g/L。结果方法最低检测质量浓度0.05 mg/L、回收率为98.0%~105.0%,相对标准偏差为2.30%。结论本实验的结果是可靠的,也大大减小了硫酸汞的用量,减小了硫酸汞对环境的污染。
Objective To improve the detection of manganese in drinking water (ammonium persulfate method). The method was based on the original method to reduce the amount of mercury sulfate, from 75 g / L to 3.75 g / L. Results The method was the lowest detection mass concentration of 0.05 mg / L, the recovery rate was 98.0% ~ 105.0%, the relative standard deviation of 2.30%. Conclusion The results of this experiment are reliable and also greatly reduce the amount of mercury sulfate, reducing the environmental pollution of mercury sulfate.