| 阳极溶出法-火焰原子吸收法测定草药中的金属 |
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| 引用本文： | 朱玲,陆星蓉,周雪,王新红.阳极溶出法-火焰原子吸收法测定草药中的金属[J].化学工程师,2012(8):26-27. |
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| 作者姓名： | 朱玲 陆星蓉 周雪 王新红 |
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| 作者单位： | 盐城师范学院化学化工学院,江苏盐城,224051 |
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| 基金项目： | 江苏省大学生创新项目;校级自然科学研究项目（10YCKL015） |
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| 摘 要： | 采用HNO3-HClO4(4∶1)混酸法对知母、柴胡、金银花、板蓝根和连翘5种中草药浸泡消解,在CH3COOH-CH3COONa底液(pH值为5)中,用阳极溶出伏安法测定5种草药中铜、铅、镉和锌含量,该法的相对标准偏差(RSD％)分别为2.1％、2.8％、2.2％、2.9％,加标回收率为95.1％～103.4％,相对原子吸收法简便快速,有较高的灵敏度,稳定性.
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| 关 键 词： | 阳极溶出伏安法 火焰原子吸收光度计 中草药 金属元素 |
Determination of metal elements in chinese herbs by anodic stripping voltammetry-flame atomic absorption method |
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| ZHU Ling
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LU Xing-rong
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ZHOU Xue
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WANG Xin-hong.Determination of metal elements in chinese herbs by anodic stripping voltammetry-flame atomic absorption method[J].Chemical Engineer,2012(8):26-27. |
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| Authors: | ZHU Ling LU Xing-rong ZHOU Xue WANG Xin-hong |
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| Affiliation: | (College of Chemistry and Chemical Engineering,Yancheng Teachers University, Yancheng 224051, China) |
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| Abstract: | Five Chinese herbs were completely digested with HNO3-HCIO4 （4：1）. Zn,Cu,Pb,Cd were determined by anodic stripping vohammetry. The results showde that the relative coefficient of the standard curve （ RSD% ） was 2.1% ,2.8% ,2.2% ,2.9%, respectively. The Recovery rate was 95.1%-103.4%. The method showed good sensitivity and repeatibility, were in good agreement with those obtained from the flame atomic absorption spectrophotometer （FAAS）. |
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| Keywords: | anodic stripping vohammetry flame atomic absorption spectrophotometer chinese herb metal element |
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