| 2种滇产中药材中11个重金属的含量测定 |
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| 引用本文： | 蒋孟圆,李文廷,欧利华,王秋波,王红斌,黄相中,胡琳.2种滇产中药材中11个重金属的含量测定[J].云南民族大学学报(自然科学版),2015(2):132-135. |
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| 作者姓名： | 蒋孟圆 李文廷 欧利华 王秋波 王红斌 黄相中 胡琳 |
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| 作者单位： | 云南民族大学民族药资源化学国家民委-教育部重点实验室;云南民族大学生物高分子功能材料工程技术研究中心;昆明市疾病预防控制中心 |
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| 基金项目： | 云南省应用基础研究计划项目(2012FD038) |
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| 摘 要： | 采取混酸湿法消解及微波消解样品,利用原子荧光光谱法及原子吸收分光光度法测定含量.2药材重金属含量(mg/kg)分别为As:0.68,1.39,Pb:0.23,0.16,Cd:0.08,0.14,Ni:0.84,1.84,Cr:4.20,6.96,Fe:254.43,431.23,Mn:9.22,4.02,Cu:4.26,3.88,Zn:19.92,20.22,其中砷的检出限为0.054 3μg/L,2种中药材的砷的加标回收率分别为98.39%~107.72%、96.87%~104.98%.该方法操作简单、准确灵敏,为中药材中重金属含量测定提供了较好的方法.
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| 关 键 词： | 湿法消解 原子吸收分光光度法 原子荧光光度法 中药材 重金属 |
Determination of heavy metal elements in two Chinese herbal medicines |
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| JIANG Meng-yuan;LI Wen-ting;OU Li-hua;WANG Qiu-bo;WANG Hong-bin;HUANG Xiang-zhong;HU Lin.Determination of heavy metal elements in two Chinese herbal medicines[J].Journal of Yunnan Nationalities University:Natural Sciences Edition,2015(2):132-135. |
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| Authors: | JIANG Meng-yuan;LI Wen-ting;OU Li-hua;WANG Qiu-bo;WANG Hong-bin;HUANG Xiang-zhong;HU Lin |
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| Institution: | JIANG Meng-yuan;LI Wen-ting;OU Li-hua;WANG Qiu-bo;WANG Hong-bin;HUANG Xiang-zhong;HU Lin;Key Laboralory of Chemistry in Ethnic Medicinal Resources,State Ethnic Affairs Comnission and Ministry of Education,Yunnan Minzu Uinversity;Engineering Research Center of Biopolymer Functional Materials of Yunnan,Yunnan Minzu University;Kunming Center for Disease Control and Prevention; |
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| Abstract: | This research adopted mixed acid( nitric acid,perchloric acid and sulfuric acid) method and the microwave digestion to digest the samples,and used the atomic fluorescence spectrometry and atomic absorption spectrophotometry to determine their relevant contents. The detection limits are As: 0. 68,1. 39 mg / kg,Pb: 0. 23,0. 16 mg / kg,Cd: 0. 08,0. 14 mg / kg,Ni: 0. 84,1. 84 mg / kg,Cr: 4. 20,6. 96 mg / kg,Fe: 254. 43,431. 23 mg / kg,Mn:9. 22,4. 02 mg / kg,Cu: 4. 26,3. 88 mg / kg,Zn: 19. 92,20. 22 mg / kg,of which the content of As is 0. 03μg / L,the addition standard recovery rates of the content of As in two Chinese herbal medicines are 98. 39% —107. 72%,96. 87% —104. 98% respectively. This method is sample,precise and sensitive for the determination of the heavy metals in Chinese herbal medicines. |
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| Keywords: | wet digestion atomic absorption spectrophotometry atomic fluorescence spectrometry Chinese herbal medicines heavy metal |
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