| 介孔Al2O3分离富集-火焰原子吸收法测定麻黄和马钱子中的铅 |
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| 引用本文： | 刘琳,周方钦,屈东方,李文山,李春艳.介孔Al2O3分离富集-火焰原子吸收法测定麻黄和马钱子中的铅[J].分析试验室,2011,30(11):1-4. |
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| 作者姓名： | 刘琳 周方钦 屈东方 李文山 李春艳 |
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| 作者单位： | 湘潭大学化学学院,环境友好化学与应用省部共建教育部重点实验室,湘潭411105 |
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| 基金项目： | 国家自然科学基金(21005068)资助 |
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| 摘 要： | 研究了介孔Al2O3分离富集-火焰原子吸收法测定麻黄和马钱子中的铅的新方法.探讨了溶液pH、吸附温度、洗脱条件及共存离子对铅分离富集的影响.在最佳实验条件下,介孔Al2O3能定量、快速吸附试液中的痕量pb2+,其静态饱和吸附容量为8.53 mg/g.吸附在介孔Al2O3上的pb2可用0.2 mol/LEDTA完全洗脱....
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| 关 键 词： | 介孔Al2O3 分离富集 麻黄 马钱子 铅 火焰原子吸收法 |
Determination of lead in ephedra herb and semen strychni by flame atomatic absorption spectrometry after separation/preconcentration with mesoporous Al_2O_3 |
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| LIU Lin,ZHOU Fang-qin,QU Dong-fang,LI Wen-shan,LI Chun-yan.Determination of lead in ephedra herb and semen strychni by flame atomatic absorption spectrometry after separation/preconcentration with mesoporous Al_2O_3[J].Chinese Journal of Analysis Laboratory,2011,30(11):1-4. |
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| Authors: | LIU Lin ZHOU Fang-qin QU Dong-fang LI Wen-shan LI Chun-yan |
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| Institution: | LIU Lin,ZHOU Fang-qin,QU Dong-fang,LI Wen-shan and LI Chun-yan(Key Laboratory of Environmentally Friendly Chemistry and Applications of Education Ministry,College of Chemistry,Xiangtan University,Xiangtan 411105) |
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| Abstract: | A new method for the determination of trace lead based on mesoporous Al_2O_3 separation/preconcentration by flame atomic adsorption spectrometry(FAAS) was studied.In this process,the effects of pH of solution,temperature,elution conditions on preconcentration of trace lead were investigated.Under the optimum conditions,the mesoporous Al_2O_3,whose static adsorption capacity was 8.53 mg/g,could quantificationally adsorb Pb2+ and the Pb2+ adsorbed on mesoporous Al203 was eluted with 0.2 mol/L EDTA.The linear ... |
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| Keywords: | Mesoporous Al_2O_3 Separation/preconcentration Ephedra herb and semen strychni sample Lead FAAS |
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