氢氧化铁共沉淀-电感耦合等离子发射光谱法测卤水中的痕量铜铅锌

摘要

用Fe(OH)3共沉淀分离卤水中的铜铅锌,用1+1的王水溶解沉淀定容,电感耦合等离子发射光谱法测定.检出限为LD (Cu Zn)=0.041mg·L-1,LD (Pb)=0.11mg·L-1,加标回收率为95.25％～ 101.9％,精密度(n=12)为1.15％.结果表明:本方法快速准确,可以准确测定卤水中铜铅锌.%Separation of iron hydroxide co-precipitation copper,lead and zinc in brine,with 1 + 1 the capacity,dissolution precipitation inductively coupled plasma emission spectrometry.The detection limit of the copper and zinc were0.041mg ·L-1,The detection limit of the lead were 0.11mg ·L-1,the receveries differ from 95.25％ to 101.9 ％,the precision of the method were 1.15％ RSD (n=12).The result shows that this method is fast and accurate,so it can satisfy the detection by rule and line of Copper,Lead and Zinc in brine.