| 原子吸收法测定三叶木通果皮中锌铅铬含量 |
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| 引用本文： | 唐顼婉,周登维,卢桃玲,郭慧琼,欧阳玉祝. 原子吸收法测定三叶木通果皮中锌铅铬含量[J]. 吉首大学学报(自然科学版), 2014, 35(5): 59-62. DOI: 10.3969/j.issn.1007-2985.2014.05.014 |
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| 作者姓名： | 唐顼婉 周登维 卢桃玲 郭慧琼 欧阳玉祝 |
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| 作者单位： | （吉首大学化学化工学院，湖南 吉首 416000） |
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| 基金项目： | 湖南省大学生研究性学习和创新性实验计划项目 |
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| 摘 要： | 用浓硝酸-高氯酸微波消解三叶木通果皮，用原子吸收分光光度法测定果皮中锌、铅和铬的含量.实验结果表明，锌、铅、铬3种重金属质量分数大小顺序为w（Zn）＞w（Pb）＞w（Cr），其值分别为9.084×10-3%，6.868×10-3%，3.241×10-3%，加标回收率分别为100.24%，99.87%，101.01%，相对标准偏差（RSD）分别为1.23%，1.22%，1.91%.该方法用于测定三叶木通果皮中锌铅铬含量，测定结果的准确度和回收率高，精密度和重复性好，具有良好的应用价值.
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| 关 键 词： | 三叶木通 果皮 原子吸收分光光度法 重金属 |
Determination of Zinc,Plumbum, and Chromium Contents in Akebia Trifoliate Peels by Flame Atomic Absorption Spectrophotometry |
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| TANG Xuwan,ZHOU Dengwei,LU Taoling,GUO Huiqiong,OUYANG Yuzhu. Determination of Zinc,Plumbum, and Chromium Contents in Akebia Trifoliate Peels by Flame Atomic Absorption Spectrophotometry[J]. Journal of Jishou University(Natural Science Edition), 2014, 35(5): 59-62. DOI: 10.3969/j.issn.1007-2985.2014.05.014 |
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| Authors: | TANG Xuwan ZHOU Dengwei LU Taoling GUO Huiqiong OUYANG Yuzhu |
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| Affiliation: | (College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,Hunan China) |
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| Abstract: | The Akebia trifoliate peel sample was digested with microwave addition concentrated nitric acid-perchloric acid, and the contents of zinc,plumbum and chromium were measured by flame atomic absorption spectrophotometry method. The results showed that the order of the three heavy metal contents was w （Zn） 〉w （Pb） 〉w （Cr） in Akebia trifoliate peels, and their contents were 9.084 × 10^-3 %, 6. 868 × 10^-3 % and 3. 241 × 10^-3 %, respectively. Recovery ratio of addition standard sample and its relative standard deviation （RSD） were 100.24%, 99.87%, 101.01 % and 1.23 %, 1.22 %, 1.91%, respectively. This method used for determination of contents of zinc,plumbum and chromium in Akebia trifoliate peel achieved high recovery rate and accuracy, and great precision and repeatability. Therefore, it has good application value. |
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| Keywords: | Akebia trifoliate peel flame atomic absorption spectrophotometry heavy metal |
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