| 在线浓缩富集石墨炉原子吸收光谱法测定饮用水中硒的研究 |
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| 引用本文： | 申屠超,蒋竹燕,李立,潘主安,陆龙辉. 在线浓缩富集石墨炉原子吸收光谱法测定饮用水中硒的研究[J]. 药物分析杂志, 2011, 0(1) |
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| 作者姓名： | 申屠超 蒋竹燕 李立 潘主安 陆龙辉 |
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| 作者单位： | 浙江树人大学生物与环境工程学院; |
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| 基金项目： | 浙江省大学生科研创新团队项目; 浙江省分析测试科技计划项目(No.2009F7002); 浙江省自然科学基金(No.Y408006)资助 |
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| 摘 要： | 目的:建立在线浓缩富集石墨炉原子吸收光谱法测定饮用水中硒的方法。方法:利用Thermo E lem ental SolaarM5原子吸收光谱仪的石墨炉升温工作程序,在一个分析测定程序周期内进行5次进样与干燥,在线浓缩富集5次后再进行灰化、原子化过程测定吸光度。硒空心阴极灯电流5.0 mA,测定波长196.0 nm,光谱通带宽度为0.5 nm。结果:在选定的实验条件下,0~25μg.L-1之间硒有较好的线性关系,相关系数为0.9981,检出限为1.38×10-11g(n=11),15μg.L-1的硒标准溶液平行进样测定13次,所得硒吸光度的RSD为4.4%(n=13),加标回收率在94.8%~106%之间。结论:本法测定硒的精密度好,准确度高,本法可应用于实际饮用水水样中痕量硒的测定。
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| 关 键 词： | 在线浓缩富集 石墨炉原子吸收光谱法 饮用水 硒 |
Determination of trace Se in drinking water using online concentration graphite furnace atomic absorption spectrometry |
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| SHEN-TU Chao,JIANG Zhu-yan,LI Li,PAN Zhu-an,LU Long-hui. Determination of trace Se in drinking water using online concentration graphite furnace atomic absorption spectrometry[J]. Chinese Journal of Pharmaceutical Analysis, 2011, 0(1) |
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| Authors: | SHEN-TU Chao JIANG Zhu-yan LI Li PAN Zhu-an LU Long-hui |
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| Affiliation: | SHEN-TU Chao1,JIANG Zhu-yan2,LI Li1,PAN Zhu-an2,LU Long-hui2(1.College of Biology and Environmental Engineering,Zhejiang Shuren University,Hangzhou 310015,China,2.Applied Chemistry Major,College of Biology and Environmental Engineering,China) |
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| Abstract: | Objective:To establish an online concentrating graphite furnace atomic absorption spectrometry(GFAAS)method for the determination of trace selenium(Se)in water.Methods:By setting the temperature control program of Thermo Elemental Solaar M5 graphite furnace atomic absorption spectrometer,the sample injection,drying and online concentration processes were repeated 5 times within one analysis period and then the absorbance was measured after ashing and atomizing procedures.The electric current of the Se light... |
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| Keywords: | online concentration graphite furnace atomic absorption spectrometry(GFAAS) drinking water selenium(Se) |
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