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| ICP-MS测定食品模拟物中的铅、砷、镉、镍、钴、锌 | |
| 引用本文： | 罗海英,阮文红,陈意光,莫月香,朱丽萍,吴玉銮,李吉龙. ICP-MS测定食品模拟物中的铅、砷、镉、镍、钴、锌[J]. 现代食品科技, 2011, 27(12): 1527-1529 |
| 作者姓名： | 罗海英 阮文红 陈意光 莫月香 朱丽萍 吴玉銮 李吉龙 |
| 作者单位： | 1. 广州市质量监督检测研究院,广东广州510110;国家包装产品质量监督检验中心(广州),广东广州510110 2. 中山大学化学与化学工程学院聚合物复合材料与功能材料教育部重点实验室,广东广州,510275 3. 广州市质量监督检测研究院,广东广州,510110 |
| 基金项目： | 国家科技支撑计划项目，广东省科技计划项目 |
| 摘 要： | 建立了电感耦合等离子质谱(ICP-MS)测定食品模拟物中铅、砷、镉、镍、钴、锌的方法。分别用水、3%(V/V)乙酸水溶液、10%(V/V)乙醇水溶液、95%(V/V)乙醇水溶液在40℃下浸泡涂有内涂层的金属饮料罐两片罐和三片罐240 h,得到食品模拟物样品。对于水、3%(V/V)乙酸水溶液、10%(V/V)乙醇水溶液三种食品模拟物样品,用电热板将样品蒸发至近干,用10%硝酸定容,上机检测。对于95%(V/V)乙醇模拟物样品,用电热板将样品蒸发至近干,剩余液体过滤后用10%(V/V)硝酸定容,上机测试。方法的检出限在0.5 ng/mL到15 ng/mL之间,线性良好,相关系数均≥0.999;在两个浓度水平进行添加实验,大部分回收率在92.3%~108%之间,相对标准偏差在0.3%～13.3%之间。方法准确度高,操作简单,是检测食品模拟物中铅、砷、镉、镍、钴、锌的有效方法。 |
| 关 键 词： | 金属涂层 食品模拟物 ICP-MS 测定 |
Determination of Heavy Metal Elements(Pb, As, Cd, Ni, Co and Zn)in Food Simulants by ICP-MS |
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| LUO Hai-ying,RUAN Wen-hong,CHEN Yi-guang,MO Yue-xiang,ZHU Li-ping,WU Yu-luan,LI Ji-long. Determination of Heavy Metal Elements(Pb, As, Cd, Ni, Co and Zn)in Food Simulants by ICP-MS[J]. Modern Food Science & Technology, 2011, 27(12): 1527-1529 | |
| Authors: | LUO Hai-ying RUAN Wen-hong CHEN Yi-guang MO Yue-xiang ZHU Li-ping WU Yu-luan LI Ji-long |
| Affiliation: | 1(1.Guangzhou Quality Supervision and Testing Institute,Guangzhou 510110)(2.Key laboratory for Polymeric Composites and Functional Materials of Ministry of Education,School of Chemistry and Chemical Engineering,Sun Yat-Sen University,Guangzhou 510275)(3.National Centre for Packaging Products Quality Supervision and Testing(Guangzhou),Guangzhou 510110) |
| Abstract: | A method for determination of Pb,As,Cd,Ni,Co,Zn in food simulants by ICP-MS was established.Beverage cans were filled with different kinds of food simulants and kept in thermostat at 40 ℃ for 240 h.Food simulants of distilled water,3%(V/V) acetic acid,10% ethanol(V/V) were evaporated and then diluted with 4% nitric acid.Food simulants of 95% ethanol(V/V) were evaporated,and then filtered before diluted with 4% nitric acid.The detection limits were from 0.5ng/mL to 15ng/mL.The linear correlations were over 0.999.Most of the recoveries at two concentration levels were from 92.3% to 108%,while the RSD from 0.3% to 8.0%.The method was precise and simple for determining these elements in food simulants. |
| Keywords: | metallic coating food simulants ICP-MS determination |
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