ICP-AES法测定玻璃器皿中铅、镉、砷、锑溶出量的研究

Simultaneous Determination of Pb,Cd,As,SbReleased from Glassware by ICP–AES

采用ICP–AES法同时测定玻璃器皿中铅、镉、砷、锑的溶出量,对ICP–AES法测定4%乙酸浸泡液时分析线的选择和射频功率、载气压力的影响,以及基体和共存离子的干扰情况等进行了研究。4种元素的检出限分别为铅0.012 mg/L,镉0.0009 mg/L,砷0.015 mg/L,锑0.015 mg/L,加标回收率为97.3%～102.0%,测定结果的相对标准偏差为0.45%～1.36%(n=6)。

ICP-AES method for the simultaneous determination of Pb, Cd, As, Sb released from glassware was presented. The effects of analytical lines, applied power and carrier gas flow-rate, matrix and coexisting elements were investigated as the soak solution of 4% acetic acid was analyzed. The detection limits were 0.012,0.0009,0.015,0.015 for Pb,Cd, As,Sb respectively. The recoveries of four elements ranged from 97.3% to 106.0%. The relative standard deviation of detection results was 0.45 % -1.36% （n=6）.