电感耦合等离子体原子发射光谱法测定玩具包装物中六价铬和镉、汞、铅
Determination of Cr(Ⅵ),Cd,Hg,Pb in Toy Packing Materials by ICP-AES
摘 要
用常规酸消解法或微波消解法消解样品,电感耦合等离子体原子发射光谱法(ICP-AES)测定了玩具包装物中的铬、镉 、汞、铅的含量.对六价铬、镉 、汞、铅的总含量超过100 mg·kg-1的样品,用共沉淀分离消解液中三价铬后,再用ICP-AES测定六价铬的含量,建立了玩具包装物中六价铬、镉 、汞、铅的快速分析方法.方法的回收率为91.2%~103.5%,相对标准偏差(n=11)均小于3%.
六价铬
重金属
玩具包装物
ICP-AES
Cr(Ⅵ)
Heavy metals
Toy packing materials
Abstract
An ICP-AES method for the determination of Cr(Ⅵ),Cd,Hg and Pb in toy packing materials was proposed in this paper.The sample was treated by the conventional acidic wet-digestion or the microwave assisted digestion,the solution obtained was then analyzed by ICP-AES.Chromium(Ⅲ) was separated from Cr(Ⅵ) in the solution after coprecipitation with ferric hydroxide when the total amount of Cr,Cd,Hg and Pb was over 100 mg·kg-1.Recovery of the method was ranged from 91.2% to 103.5% and values of RSD′s (n=11) were less than 3%.
中图分类号 O657.31
所属栏目 工作简报
基金项目 广东出入境检验检疫课题项目(GDJ42-2002)资助
收稿日期 2007/9/6
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备注刘崇华(1974-),男,江西吉安人,高级工程师,硕士,主要从事进出口商品化学检测与研究.
引用该论文: LIU Chong-hua,CHEN Yang,LONG Chao-yang,HUANG Li-na. Determination of Cr(Ⅵ),Cd,Hg,Pb in Toy Packing Materials by ICP-AES[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2008, 44(11): 1066～1068
刘崇华,陈阳,龙朝阳,黄理纳. 电感耦合等离子体原子发射光谱法测定玩具包装物中六价铬和镉、汞、铅[J]. 理化检验－化学分册, 2008, 44(11): 1066～1068
被引情况:
【1】李政军,方永康,刘能盛,杨蓓,李波平,刘丽芬,林宏雄,翟翠萍,郑建国, "电感耦合等离子体原子发射光谱法测定硅钢片涂层中铬",理化检验－化学分册 45, 1122-1123(2009)
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参考文献
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【3】郭仁红.欧盟包装和包装废弃物法令有害重金属限量评析[J].包装工程,2004,25(1):128．
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