水平观测ICP-AES法测定玻璃食具中铅、镉、锑和砷的溶出量

Determinati on of release of Pb,Cd,Sb and As from glass food containers by axial view ICP-AES

目的：建立同时测定玻璃食具中铅、镉、锑和砷溶出量的新方法。方法：应用水平观测ICP-AES法同时测定样品在4%乙酸中铅、镉、锑和砷溶出量。结果：优化了仪器工作参数。铅、镉、锑和砷的检出限分别为0.008,0.0009,0.014和0.020 mg/L;定量下限分别为0.026,0.0030,0.046和0.066 mg/L;回收率为97.2%-103.6%;相对标准偏差为0.94%-1.87%（n=8）。结论：本法简便、快速、灵敏、准确,适用于进出口玻璃食具中铅、镉、锑和砷溶出量的快速测定。

Objietive：To establish a new method for the simultaneous determination of the release of Pb,Cd,Sb and As from glass food containers.Methods：A method for the simultaneous determination of the release of Pb,Cd,Sb and As from glass food containers by Axial view ICP-AES was developed.Results：The working parameters were discussed and optimized.The detection limits were 0.008 mg/L for Pb,0.0009 mg/L for Cd,0.014 mg/L for Sb,0.020 mg/L for As.The LOQ was 0.026 mg/L for Pb,0.0030 mg/L for Cd,0.046 mg/L for Sb,0.066 mg/L for As.The recovery was in the range of 97.2%～103.6%.The RSD was 0.94%～1.87%（n=8）.Conclusion：The method is simple,quick,accurate and sensitive.It is feasible for determination of the release of Pb,Cd,Sb and As from importing and exporting glass food containers.