摘要
利用ICP-MS光谱仪,探讨铜质水表中重金属的溶出,分析了水质、浸泡时间、pH值对重金属溶出的影响。各元素在模拟自来水中的溶出量是超纯水的1.5～2倍,溶出量由大到小依次为Cu,Pb,Cr(VI),Cd;一般在0.5 d时出现溶出拐点,在4 d时达基本饱和;在pH 4的酸性水质中,各元素的溶出量为极大值。该方法适于铜质水表中重金属溶出的分析。
Heavy metals released from the copper meter was investigated by ICP-MS. Effect of water quality, soaking time, pH on stripping was analysed. The elements released in the simulation water was 1.5 to 2 times more than that of ultrapure water. Generally, there was a abrupt change point on half day in the plot of elements release, and there was saturation point on four day. The content of release appeared to be a great value in pH4 acid water. This method was suitable for analysis of heavy metals released from the copper meter.
出处
《化学分析计量》
CAS
2012年第1期61-63,共3页
Chemical Analysis And Meterage
关键词
铜质水表
重金属
溶出
copper water meter
heavy metal
release
