韩井伟,王正国,杨娟,张丽,孙敬忠.微波消解-ICP-MS法测定木质包装材料中重金属元素[J].包装工程,2015,36(1):42-45,84.
HAN Jing-wei,WANG Zheng-guo,YANG Juan,ZHANG Li,SUN Jing-zhong.Determination of Heavy Metal Elements in Wooden Packing Materials by Microwave Digestion and ICP-MS[J].Packaging Engineering,2015,36(1):42-45,84. |
| 微波消解-ICP-MS法测定木质包装材料中重金属元素 |
| Determination of Heavy Metal Elements in Wooden Packing Materials by Microwave Digestion and ICP-MS |
| 投稿时间：2014-04-09 修订日期：2015-01-10 |
| DOI： |
| 中文关键词: 电感耦合等离子体质谱 包装材料 重金属元素 |
| 英文关键词: ICP-MS wooden packing materials heavy metal elements |
| 基金项目:质检公益性行业科研专项 （201210062） |
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| 中文摘要: |
| 目的 采用微波消解法处理木质包装材料， 建立了电感耦合等离子体质谱法（ICP-MS）法测定木质包装材料中铬、 钴、 镍、 铜、 砷、 硒、 镉、 锑、 钡、 汞、 铊、 铅等12种重金属元素的方法。方法 样品用HNO3-H2O2混合酸进行微波消解， 选择 45Sc， 72Ge， 115In， 209Bi等元素， 作为内标校正基体干扰和信号漂移， 采用八级杆碰撞/反应池技术消除质谱干扰， 优化了仪器的工作条件。结果 待测元素的标准曲线相关系数为0.9997~1.0000， 方法检出限为0.01~0.28 μg/L， 加标回收率为89.4%~112.5%， 相对标准偏差（RSD）为0.75%~3.81%。结论 该方法快速简便、 准确可靠， 可用于测定木质包装材料中的重金属元素。 |
| 英文摘要: |
| To establish a method for the determination of Cr, Co, Ni, Cu, As, Se, Cd, Sb, Ba, Hg, Tl and Pb in wooden packing materials by inductively coupled plasma-mass (ICP-MS) with microwave digestion. HNO3+H2O2 were used to com? pletely digest the sample by microwave. 45Sc, 72Ge, 115In and 209Bi were used as internal standard elements to compensate ma? trix effect and signal drift. Octpole collision and reaction cell system (ORS) was used to compensate mass effect. The work? ing parameters of the instrument were optimized. For all elements, the correlation coefficient was between 0.9997 and 1.0000. The detection limits were between 0.01 μg/L and 0.28 μg/L. The recoveries of the method were between 89.4% and 112.5%. The relative standard deviations were between 0.75% and 3.81%. The method was simple, quick and accurate. It was suitable for the determination of the contents of heavy metal elements in wooden packing materials. |
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