电感耦合等离子体质谱法测定葡萄酒中铁、铜、铅元素含量
CSTR:
作者:
作者单位:

徐州市疾病预防控制中心,江苏 徐州 221000

作者简介:

李营 女 副主任技师 研究方向为食品营养和有害因素检测 E-mail:liying.jiyi@163.com

通讯作者:

中图分类号:

R155

基金项目:


Determination of iron, copper and lead by inductively coupled plasma mass spectrometry in wine
Author:
Affiliation:

Xuzhou Center for Disease Control and Prevention, Jiangsu Xuzhou 221000, China

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    目的 建立电感耦合等离子体质谱(ICP-MS)快速检测方法,对葡萄酒中金属元素指标铜、铁及重金属元素铅进行测定。方法 采用程序升温-微波消解方式消解样品,以氦气为反应气体消除分子离子干扰,ICP-MS法测定。分别在碰撞模式和非碰撞模式下选择56Fe和57Fe两种同位素验证对测定结果的影响。对比微波消解法、稀释法和电热消解法3种不同前处理方法测定的差异。结果 优化了仪器参数,3种元素检出限在0.003~0.007 mg/L,方法精密度为0.8%~5.1%,回收率在90.4%~106.0%。证实使用微波消解-56Fe-碰撞模式或微波消解-57Fe-非碰撞模式能够更准确测定葡萄酒中铁元素,直接稀释法可用于快速准确测定铅和铜元素含量。使用有证标准物质测定葡萄酒中铁、铅,均在指定值范围。结论 所建立的方法具有灵敏度高、检测结果快速准确的优点,适用于葡萄酒中3种元素的测定。

    Abstract:

    Objective The determination of metal content of iron, copper and heavy metal element of lead in wine by inductively coupled plasma mass spectrometry (ICP-MS) was established.Methods The wine samples were digested by temperature programmed microwave digestion system. Helium gas was used as reaction gas to eliminate molecular ion interference, and the samples were determined by ICP-MS method. The influence of 56Fe and 57Fe isotopes on the determination results in collision mode and non-collision mode were verified. The differences of three pretreatment methods, microwave digestion, dilution and electrothermic digestion were compared.Results The parameters of the instrument were optimized and the detection limits of the three elements were 0.003-0.007 mg/L, precision of the method was 0.8%-5.1% and the recovery was 90.4%-106.0%. It was proved that the iron content in wine can be determined accurately by microwave digestion-56Fe-collision mode or microwave digestion-57Fe-non-collision mode. The direct dilution method can be used to determine elements of lead and copper quickly and accurately. Contents of iron and lead were determined with certified reference material and results were in the specified range.Conclusion The method has the advantages of high sensitivity, rapid and accurate detection results, and is suitable for the determination of iron, copper and lead in wine.

    参考文献
    相似文献
    引证文献
引用本文

李营,吕卓璇.电感耦合等离子体质谱法测定葡萄酒中铁、铜、铅元素含量[J].中国食品卫生杂志,2025,37(2):153-158.

复制
相关视频

分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2024-05-20
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2025-06-05
  • 出版日期:
文章二维码
严正声明
关闭