摘要
以库仑滴定法测定工业废水中微量砷,以死停终点法确定滴定终点,最后以EXCEL处理实验数据,本方法具有灵敏度高,准确,简便快速,仪器便宜,易于推广的特点,特别适用于工厂及县级以下环境监测站进行水中微量砷的检测,方法的回收率为99.3％。
A method of determinaion of the micro amout arsenic in the industry waste water is the coulometric titration and end point of the titration is confirmed by method of the die stop end point, finally is treated with experinent data by EXCEL this method possess has the characteristic of the high sensitively, nicety, simple convenient rapid and is prone to extend. Especiallly il is suitable to determination of the micro arsenic in the factry and station of the circumstance inspect and measure, recovery of the method is 99.3 % .
出处
《化工时刊》
CAS
2003年第4期31-33,共3页
Chemical Industry Times
关键词
库仑滴定法
测定
工业废水
微量砷
回收率
死停终点法
coulometric titration industry waste water arsenic method of the die stop end point
