微波消解-石墨炉原子吸收光谱法分析中药中微量元素

微波消解-石墨炉原子吸收光谱法分析中药中微量元素

马强¹，胡海¹，刘颖²，王鑫岩¹, 李雅冰¹, 苏星光¹

1. 吉林大学化学学院, 长春 130012;2. 空军航空大学特种专业系，长春 130022

收稿日期:2005-11-23 修回日期:1900-01-01 出版日期:2006-09-26 发布日期:2006-09-26
通讯作者: 苏星光

Determination of Trace Elements in Traditional Chinese Medicines by Microwave Digestiongraphite Furnace Atomic Absorption Spectrometry

MA Qiang¹, HU Hai¹, LIU Ying², WANG Xinyan¹, LI Yabing¹, SU Xingguang¹

1. College of Chemistry, Jilin University, Changchun 130012, China; 2. Department of Special Service, Aviation University of Air Force, Changchun 130022, China

Received:2005-11-23 Revised:1900-01-01 Online:2006-09-26 Published:2006-09-26
Contact: SU Xingguang

摘要/Abstract

摘要： 采用石墨炉原子吸收光谱法(GFAAS)测定了中药中铜、铁和锌的含量. 以磷酸二氢铵作为基体改进剂，对基体改进剂的用量、灰化温度、原子化温度等实验参数进行了选择和优化. 实验结果表明，加入基体改进剂后不仅能提高测定的灵敏度，还能有效地消除共存离子的干扰. 在选定的实验条件下，利用标准加入法分析测定了中药当归(Ra dix angelicae sinensis)、槐花(Flos sophorae)、桑寄生(Herba taxilli)、罗布麻叶 (Folium apocyni veneti)和黄芩(Radix scutellarae)等中药中的铜、铁和锌的含量，回收率为90%~110%，方法的相对标准偏差小于5%. 该法快速、可靠，为中药中微量元素的测定提供了一种简便的方法.

关键词: 石墨炉原子吸收光谱法, 中草药, 微量元素, 基体改进剂

Abstract: A method for the determination of trace elements in traditional Chinese medicines by graphite furnace atomic absorption spectrometry (GFAAS) is described. The matrix modifier used in this work was NH₄H₂PO₄. The effects of matrix quantity, ashing temperature and atomization temperature were investigated. Matrix modifier NH₄H₂PO₄ can not only improve the sensitivity of determination but also eliminate the matrix effect. Under the optimum experimental conditions, copper, iron and zinc in traditional Chinese medicines such as radix angelicae sinensis, flos sophorae, herba taxilli, folium apocyni veneti and radix scutellarae were determined. The recoveries are between 90% and 110%, the relative standard deviation is less than 5%, and the experimental results are satisfactory. This method is rapid and reliable. It provides a simple method for the determination of trace elements in traditional Chinese medicines.

Key words: graphite furnace atomic absorption spectrometry, traditional Chinese medicine,  trace element, matrix modifier

中图分类号:

O657

马强，胡海，刘颖，王鑫岩, 李雅冰, 苏星光. 微波消解-石墨炉原子吸收光谱法分析中药中微量元素[J]. J4, 2006, 44(05): 817-820.

MA Qiang, HU Hai, LIU Ying, WANG Xinyan, LI Yabing, SU Xingguang. Determination of Trace Elements in Traditional Chinese Medicines by Microwave Digestiongraphite Furnace Atomic Absorption Spectrometry[J]. J4, 2006, 44(05): 817-820.

[1]	齐海燕, 唐万侠, 孙铭, 张丹. 用微波消解-石墨炉原子吸收光谱法测定4种中药中的重金属元素[J]. 吉林大学学报(理学版), 2016, 54(04): 914-918.
[2]	包玉敏, 张力, 徐玲, 张丽. 蒙药材金莲花中5种微量元素的形态分析[J]. J4, 2011, 49(02): 327-330.
[3]	高岩松, 庄长福, 王祥全, 董新伟, 于双江, 师同顺. 吉林大学学生发样中微量元素的ICP-AES测定与分析[J]. J4, 2010, 48(06): 1057-1060.
[4]	毕淑云, 闫丽丽, 李宁辉, 王强. 用火焰原子吸收光谱法测定熟地黄和车前子中6种金属元素的质量比[J]. J4, 2010, 48(03): 499-502.
[5]	王松君, 王璞珺, 常平, 侯天平. 貉被毛中微量元素的ICP-AES分析[J]. J4, 2008, 46(05): 988-991.
[6]	孙永雄, 王洪艳, 杨永健, 王维平, 李荣. 中草药质量模式综合判定[J]. J4, 2006, 44(06): 226-230.
[7]	王松君，常平，王璞珺，侯天平，　侯悦. ICPAES测定闪锌矿中9种元素的方法[J]. J4, 2006, 44(06): 993-996.
[8]	马强，刘军，苏星光. 石墨炉原子吸收光谱法测定中药中微量金属元素[J]. J4, 2004, 42(04): 606-611.