测定废水中总铬前处理方法的改进探究

Improvement of Pretreatment during Total Chromium Determining

采用COD消解器加热氧化法代替锥形瓶加热氧化法或密塞高压蒸汽法测定总铬,结果表明:此方法缩短了分析时间,操作简便,分析结果准确度高。

We used COD heater block instead of high-pressure steam method or heating plate oxidation to determine total chromium.The results show that this method can shorten analysis time.It＇s easy to operate.The results of analysis have high precision and accuracy.