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| 流动注射-微柱在线富集/电感耦合等离子发射光谱法测定中成药中痕量铅和镉 | |
| 引用本文： | 韩晓燕,孟凤林,吴伟华,张政朴.流动注射-微柱在线富集/电感耦合等离子发射光谱法测定中成药中痕量铅和镉[J].分析化学,2009,37(7). |
| 作者姓名： | 韩晓燕 孟凤林 吴伟华 张政朴 |
| 作者单位： | 1. 南开大学,高分子化学研究所,功能高分子材料教育部重点实验室,天津,300071;天津中医药大学中药学院,天津市中药化学与分析重点实验室,天津,300193 2. 南开大学环境科学与工程学院,天津,300071 3. 南开大学,高分子化学研究所,功能高分子材料教育部重点实验室,天津,300071 |
| 摘 要： | 采用自制固相萃取材料PTFE-g-GMA-PEI纤维填充微柱预富集和流动注射(FI) 与电感耦合等离子发射光谱仪联用, 测定样品中痕量Pb2+和Cd2+.对Pb2+和Cd2+的富集与洗脱条件进行优化,并给出相应离子的分析特性.结果表明: 本方法Pb2+和Cd2+检出限分别为3.5和0.15 μg/L; 富集倍数分别为30和80; RSD分别为1.5%和0.6%(n=9,单个离子浓度为50 μg/L).本方法应用于几种中成药中的痕量铅和镉的同时测定,样品加标回收率在90%～108% 之间, 结果满意. |
| 关 键 词： | 聚乙烯亚胺 聚四氟乙烯纤维 电感耦合等离子发射光谱 铅 镉 中成药 |
Determination of Trace Lead and Cadmium in Traditional Chinese Medicine by Flow Injection-on-Line Preconcentration-Inductively Coupled Plasma Optical Emission Spectrometry |
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| HAN Xiao-Yan,MENG Feng-Lin,WU Wei-Hua,ZHANG Zheng-Pu.Determination of Trace Lead and Cadmium in Traditional Chinese Medicine by Flow Injection-on-Line Preconcentration-Inductively Coupled Plasma Optical Emission Spectrometry[J].Chinese Journal of Analytical Chemistry,2009,37(7). | |
| Authors: | HAN Xiao-Yan MENG Feng-Lin WU Wei-Hua ZHANG Zheng-Pu |
| Institution: | HAN Xiao-Yan1,2,MENG Feng-Lin3,WU Wei-Hua1,ZHANG Zheng-Pu1 1(Institute of Polymer Chemistry,State Laboratory of Function Polymeric Materials,Nankai University,Tianjin 300071)2(School of Chinese Materia Medica,Tianjin Key Laboratory of Chemistry and Analysis of Chinese Materia Medica,Tianjin University of Traditional Chinese Medicine,Tianjin 300193)3(School of Environmental Science and Engineer,Tianjin 300071) |
| Abstract: | Using a micro-column packed with polyethylenimine aminated glycidyl methacrylate-grafted-polytetrafluoroethylene fiber made by ourselves as the adsorption material,the adsorption behaviors of Pb and Cd under different conditions were studied by inductively coupled plasma optical emission spectrometry.The conditions for the preconcentration of Pb and Cd such as pH,flow-rate,time and eluent acidity were optimized.The results show that the PTFE-g-GMA-PEI Fiber has excellent adsorption property and high adsorpt... |
| Keywords: | Polyethylenimine polytetrafluoroethylene fiber inductively coupled plasma optical emission spectrometry lead cadmium Chinese traditional medicine |
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