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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (17): 75-79.doi: 10.11924/j.issn.1000-6850.casb15020081

所属专题： 土壤重金属污染； 园艺

• 食品 营养 检测 安全 • 上一篇    下一篇

9个产地金银花中6种重金属含量的分析

向明,曾婉俐,田丽梅,宋春满,杨叶昆   

  1. 云南中烟工业有限责任公司技术中心,云南中烟工业有限责任公司技术中心,云南中烟工业有限责任公司技术中心,云南中烟工业有限责任公司技术中心,云南中烟工业有限责任公司技术中心
  • 收稿日期:2015-02-13 修回日期:2015-04-07 接受日期:2015-04-22 出版日期:2015-07-27 发布日期:2015-07-27
  • 通讯作者: 杨叶昆
  • 基金资助:
    云南中烟工业有限责任公司科技计划项目“烟叶中7种重金属含量在陈化期间的变化研究”(2014JC04)，“烟叶中7种重金属含量在打叶复烤前后的变化研究”(2014JC05)。

Determination of 6 Heavy Metal Elements in Honeysuckle from 9 Producing Areas

  • Received:2015-02-13 Revised:2015-04-07 Accepted:2015-04-22 Online:2015-07-27 Published:2015-07-27

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摘要： 建立电感耦合等离子体质谱测定金银花中砷、铬、镉、镍、铅、硒6种重金属元素含量的方法，并分析9个不同产地金银花样品中重金属含量。样品经微波消解后，用电感耦合等离子体质谱测定，加标考察方法的准确度与精密度，以及方法的线性范围和检测限。建立的方法对6种重金属元素的平均回收率为97.4%~105.4%，相对标准偏差为0.6%~3.5%，定量限为0.2μg/L。9个产地金银花样品中砷、铬、镉、镍、铅、硒的平均含量分别为0.38、0.62、0.22、2.02、0.84、0.70mg/kg。9个金银花样品被聚为4类。微波消解-电感耦合等离子体质谱法灵敏准确，适合金银花中6种重金属元素的测定。9个不同产地金银花样品中重金属含量均在药典规定范围内。

关键词: 焦磷酸测序, 焦磷酸测序

Abstract: The aim was to establish a simultaneous determination method of 6 heavy metal elements including As, Cr, Cd, Ni, Pb and Se in honeysuckle by ICP- MS, and to detect heavy metal contents in honeysuckle samples from 9 producing areas. Samples were digested with microwave, and were determined by ICP- MS. Standard solvent was added to samples to investigate the accuracy, precision, linear range and limit of quantitative of the method. The average recovery rates of the 6 heavy metal elements were in the range of 97.4%-105.4% with the relative standard derivation of 0.6%-3.5%. The limit of quantitative was 0.2 μg/L. 6 heavy metal elements of 9 samples were determined with this method, and the average content of As, Cr, Cd, Ni, Pb and Se was 0.38, 0.62, 0.22, 2.02, 0.84, 0.70 mg/kg, respectively. 9 samples could be clustered into 4 kinds. The method was sensitive and accurate, and suitable for determining 6 heavy metal elements in honeysuckle, and their contents of samples from 9 producing areas were in the limit range of Chinese Pharmacopoeia Regulation.