山东科学 ›› 2017, Vol. 30 ›› Issue (2): 20-24.doi: 10.3976/j.issn.1002-4026.2017.02.004

• 中药与天然活性产物 • 上一篇    下一篇

ICP-OES法测定市售金银花中8种金属元素含量

张金成, 张永清, 梁从莲, 霍立群, 李佳*   

  1. 山东中医药大学药学院,山东 济南 250355
  • 收稿日期:2016-09-07 出版日期:2017-04-20 发布日期:2017-04-20
  • 通信作者: 李佳,女,教授,博士生导师,研究方向为中药资源与质量控制。E-mail:ljytl7172@163.com E-mail:ljytl7172@163.com
  • 作者简介:张金成(1991—),男,硕士研究生,研究方向为中药资源与质量控制。E-mail:842179599@qq.com
  • 基金资助:

    山东省自主创新专项(2013CXC20401)

Determination of the contents of eight metal elements in flowers of Lonicerae Japonicae Flos by ICP-OES

ZHANG Jin-cheng, ZHANG Yong-qing, LIANG Cong-lian, HUO Li-qun, LI Jia*   

  1. Shandong University of Traditional Chinese Medicine, Jinan 250355, China
  • Received:2016-09-07 Online:2017-04-20 Published:2017-04-20

摘要:

为了解山东、河南、河北3个主要产地市售金银花药材中Al、As、Cd、Cu、Mn、Ni、Pb、Zn 8种金属元素的含量情况,微波消解处理金银花,采用电感耦合等离子发射光谱法(ICP-OES) 测定元素含量。该方法在线性范围内线性关系较好,R在0.999 96~1.000 0之间,平均回收率在 95. 30%~101. 2%之间,相对标准偏差小于3%(n=8),符合元素分析要求。测得市售26个金银花样品中Al、As、Cd、Cu、Mn、Ni、Pb、Zn的含量范围分别是10.30~49.68、0.050 0~0.333 3、0.066 7~0.333 3、0.300 0~7.317、4.983~26.87、5.767~12.55、0.100 0~1.500、3.550~16.90 mg/kg。研究发现,市售金银花药材中的金属元素含量差异较大,有部分金银花的金属含量过高,甚至超标。

关键词: 金银花, 电感耦合等离子发射光谱法, 金属元素, 微波消解

Abstract:

To investigate the contents of 8 metal elements (Al,As,Cd,Cu,Mn,Ni,Zn,Pb) in Lonicerae Japonicae Flos from three main habitats Shandong, Henan and Hebei, microwave digestion was used for treatment of the flower samples, and the contents of 8 elements were determined by ICP-OES. The method showed a good linear relationship (R between 0.999 96~1.000 0), and the average recovery rate between 95.30%~101.2%, and the relative standard deviation less than 3% (n=8), in line with the requirements of the element analysis. Each content of 8 elements (Al、As、Cd、Cu、Mn、Ni、Pb and Zn) in 26 samples of Lonicerae Japonicae Flos was measured,and they were in the ranges of 10.30~49.68,0.050 0~0.333 3, 0.066 7~0.333 3, 0.300 0~7.317, 4.983~26.87, 5.767~12.55, 0.100 0~1.500 and 3.550~16.90 mg/kg respectively. The results showed that the metal element contents in Lonicerae Japonicae Flos were quite different, and some mental contents were too higher or even exceeded the standard values.

Key words: Lonicerae Japonicae Flos, metal element, microwave digestion, ICP-OES

中图分类号: 

  • R284.1

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