| 氢化物-原子荧光法测定枸杞中的铅 |
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| 引用本文： | 肖昭蓉,宋青云,孙丰全.氢化物-原子荧光法测定枸杞中的铅[J].安徽农业科学,2009,37(4):1416-1417. |
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| 作者姓名： | 肖昭蓉 宋青云 孙丰全 |
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| 作者单位： | 青海岩矿测试应用研究所,青海,西宁,810008;青海大学医学院药学系,青海,西宁,810001 |
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| 摘 要： | 目的]简便快速测定枸杞中痕量铅的含量。方法]采用氢化物-原子荧光法测定枸杞中的铅含量。结果]采用干法灰化样品，以HCl-KBH4-K3Fe（CN）。为反应测定体系，铅的质量浓度在0～25μg／L范围内呈线性关系，相关系数为0．9993。检出限为0．12μg／L（n=8）。加标回收率为99．6％～103．0％。相对标准偏差小于2．6％（n=8）。结论]该方法具有简便快速、灵敏度高、准确可靠等特点，可满足枸杞中痕量铅的检测要求。
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| 关 键 词： | 氢化物-原子荧光光谱法 铅 枸杞 |
Hydride Generation-Atomic Fluorescence Spectrometric Determination of Trace Lead in Barbarum L. |
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| XIAO Zhao-rong et al.Hydride Generation-Atomic Fluorescence Spectrometric Determination of Trace Lead in Barbarum L.[J].Journal of Anhui Agricultural Sciences,2009,37(4):1416-1417. |
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| Authors: | XIAO Zhao-rong |
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| Institution: | XIAO Zhao-rong et al (The Rock , Mineral Test Application Research Institute of QingHai,Xining,Qinghai 810008) |
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| Abstract: | Objective ] The aim of this study was to determine the trace lead content on Barbarum rapidly and easily.Method] A method for determination of trace lead in Barbarum samples by a hydride generation atomic fluorescence spectrometry has been developed.Result ] By dryashing digestion and using HCl-KBH4-K3Fe(CN)6 system,this study found out that the quality concentration demonstrates a linear correlation in the range of 0-25 μg/L and the correlation coefficient is 0.999 3,the detection limit is 0.12 μg/L(n=8).The recovery is in the range of 99.6 %-103.0 % and the relative standard deviation was less than 2.6 %(n=8).Conclusion] This method is simple,rapid and sensitive,so it can be successfully used for the determination of trace lead in Barbarum. |
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| Keywords: | Atomic fluorescence spectrometry Hydride generation Lead Barbarum L |
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