DUO-ICP-AES法同时测定不锈钢食具容器中铅、镉、铬、镍、砷的溶出量  

SIMULTANEOUS DETERMINATION OF Pb,Cd,Cr,Ni AND As BY DUO-ICP-AES IN LEACHING SOLUTION RELEASED FROM STAINLESS STEEL FOOD CONTAINERS AND TABLE WARES

作　　者：谭智毅[1] 谢静[1] 梁炜峰[1] 张海峰[1] 钟志光[1] 

机构地区：[1]广东出入境检验检疫局,广东广州510623

出　　处：《检验检疫科学》2007年第3期42-44,共3页Inspection and Quarantine Science

摘　　要：采用DUO-ICP-AES同时测定不锈钢食具容器中铅、镉、铬、镍、砷的溶出量,对4%醋酸溶液中仪器的分析线选择、背景校正、入射功率、雾化器压力、辅助气流量、冷却气流量、蠕动泵转速的影响及共存元素的干扰等因素进行了详细的研究。方法的检测限:铅0.0063 mg/L;镉0.0009 mg/L;铬0.0018 mg/L;镍0.0012 mg/L;砷0.015mg/L,方法的回收率和精密度分别为96.4%～100.0%和0.31%～2.1%。该方法快速简便,具有良好的精密度和准确度,适用于进出口不锈钢食具容器的日常检验。The method for the simultaneous determination ofPb, Cd, Cr, Ni and As in leaching solution released from stainless steel food containers and table wares has been developed by DUO-ICP-AES. The factors such as the selection of analytical wavelengths, the correction of the background, the influence of instrument parameters such as power, nebulizer pressure, auxiliary gas, analysis pump rate in 4% acetic acid, and the interference of coexistent elements have been investigaed. The detection limits of the method were 0.0063 mg/L for Pb, 0.0009mg/L for Cd, 0.0018 mg/L for Cr, 0.0012mg/L for Ni, and 0.015 mg/L for As. The recovery rates and precision of the method are in the range of 96.4%-100.0% and 0.31%-2.1% respectively. The method is simple and fast with satisfactory results of real samples, convenient and suitable for daily inspection of import and export stainless Steel food containers and table wares.

关 键 词：双向视电感耦合等离子体原子发射光谱 不锈钢食具容器 铅 镉 铬 镍 砷 

分 类 号：O657.31[理学—分析化学] TG142[理学—化学]