食品科学

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ICP-MS法测定铝塑复合食品包装中的9 种重金属

乔兆华1,2,林勤保1,2,*,郭 捷3,宋 欢4,王蓉珍3,薛圆圆3   

  1. 1.暨南大学包装工程研究所,广东普通高校产品包装与物流重点实验室,广东 珠海 519070;
    2.山西大学生命科学学院,山西 太原 030006;3.山西省分析科学研究院,山西 太原 030006;
    4.山西出入境检验检疫局,山西 太原 030024
  • 出版日期:2015-09-25 发布日期:2015-09-11
  • 通讯作者: 林勤保
  • 基金资助:

    国家质检总局科技计划项目(2014IK142);山西省社会发展科技攻关项目(20130313028-3)

Determination of 9 Heavy Metals in Aluminum-Plastic Composite Packaging by ICP-MS

QIAO Zhaohua1,2, LIN Qinbao1,2,*, GUO Jie3, SONG Huan4, WANG Rongzhen3, XUE Yuanyuan3   

  1. 1. Key Laboratory of Product Packaging and Logistics, Packaging Engineering Institute, Jinan University, Zhuhai 519070, China;
    2. College of Life Science, Shanxi University, Taiyuan 030006, China;
    3. Shanxi Academy of Analytical Sciences, Taiyuan 030006, China;
    4. Shanxi Entry-Exit Inspection and Quarantine Bureau, Taiyuan 030024, China
  • Online:2015-09-25 Published:2015-09-11
  • Contact: LIN Qinbao

摘要:

采用电感耦合等离子体质谱法同时测定铝塑复合食品包装容器中的9 种重金属(铅、镍、镉、铬、铜、砷、锰、锌、钛)。该方法的检出限为0.01~1.62 μg/kg,定量限为0.03~5.35 μg/kg,线性良好,相关系数均不小于0.99;在3 个水平(20、50、100 μg/kg)进行添加实验,加标回收率在82.6%~119.3%之间,相对标准偏差在0.1%~12.3%之间。该方法快速、简便,具有较好的准确度和精密度,适合于铝塑复合食品包装中的重金属检测。

关键词: 电感耦合等离子体质谱法, 食品包装, 重金属

Abstract:

A method for the determination of nine heavy metals including lead, nickel, cadmium, chromium, copper, arsenic,
manganese, zinc, and titanium in aluminum-plastic composite packaging by inductively coupled plasma mass spectrometry
(ICP-MS) has been developed. The limits of detection (LODs) were between 0.01 and 1.62 μg/kg and the limits of
quantitation (LOQs) were between 0.03 and 5.35 μg/kg. Good linearity with correlation coefficients ≥ 0.99 was obtained.
The recoveries ranged from 82.6% to 119.3% with relative standard deviations (RSDs) of 0.1%–12.3% at three spiked
concentration levels (20, 50, and 100 μg/kg). The method is rapid, simple, and has good accuracy and precision. It is suitable
for the determination of heavy metals in aluminum-plastic composite packaging.

Key words: inductively coupled plasma mass spectrometry (ICP-MS), food packaging, heavy metal

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