Nanomaterial/Ionophore-Based Electrode for Anodic Stripping Voltammetric Determination of Lead: An Electrochemical Sensing Platform toward Heavy Metals
文献类型：期刊论文
| 作者 | Pan, Dawei1 ; Wang, Yuane1; Chen, Zhaopeng1; Lou, Tingting1; Qin, Wei1,2
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| 刊名 | ANALYTICAL CHEMISTRY
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| 出版日期 | 2009-06-15 |
| 卷号 | 81期号:12页码:5088-5094 |
| 关键词 | Carbon-paste Electrode Screen-printed Electrodes Functionalized Mesoporous Silica Mercury Film Electrode Composite Electrodes Natural-waters Flow-injection Tap Water Trace Cadmium |
| 产权排序 | Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Environm Chem Lab;Yantai Univ, Sch Oceanol |
| 通讯作者 | Qin, W, Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Environm Chem Lab, Yantai 264003, Peoples R China |
| 文献子类 | Article |
| 英文摘要 | A novel nanomaterial/ionophore-modified glassy carbon electrode for anodic stripping analysis of lead (Pb2+) is described. Nanosized hydroxyapatite (NHAP) with width of 20-25 mn and length of 50-100 nm has been prepared and used to improve the sensitivity for detection of Pb2+ because it provides unique three-dimensional network structure and has strong adsorption ability toward Ph2+. An ionophore, usually used in ion-selective electrodes, is utilized here for its excellent selectivity toward Pb2+. Nafion, a cation-exchange polymer, is employed as the conductive matrix in which NHAP and the ionophore can be tightly attached to the electrode surface. Such a designed NHAP/ionophore/Nafion-modified electrode shows remarkably improved sensitivity and selectivity to Pb2+. The electrode has a linear range of 5.0 nM to 0.8 mu M with a 10 min accumulation time at open-circuit potential. The sensitivity and detection limit of the proposed sensor are 13 mu A/mu M and 1.0 nM, respectively. Interference from other heavy metal ions such as Cd2+, Cu2+, and Hg2+ associated with lead analysis can be effectively diminished. The practical application of the proposed sensor has been carried out for determination of trace levels of Pb2+ in real water samples.; A novel nanomaterial/ionophore-modified glassy carbon electrode for anodic stripping analysis of lead (Pb(2+)) is described. Nanosized hydroxyapatite (NHAP) with width of 20-25 mn and length of 50-100 nm has been prepared and used to improve the sensitivity for detection of Pb(2+) because it provides unique three-dimensional network structure and has strong adsorption ability toward Ph(2+). An ionophore, usually used in ion-selective electrodes, is utilized here for its excellent selectivity toward Pb(2+). Nafion, a cation-exchange polymer, is employed as the conductive matrix in which NHAP and the ionophore can be tightly attached to the electrode surface. Such a designed NHAP/ionophore/Nafion-modified electrode shows remarkably improved sensitivity and selectivity to Pb(2+). The electrode has a linear range of 5.0 nM to 0.8 mu M with a 10 min accumulation time at open-circuit potential. The sensitivity and detection limit of the proposed sensor are 13 mu A/mu M and 1.0 nM, respectively. Interference from other heavy metal ions such as Cd(2+), Cu(2+), and Hg(2+) associated with lead analysis can be effectively diminished. The practical application of the proposed sensor has been carried out for determination of trace levels of Pb(2+) in real water samples. |
| 学科主题 | Chemistry ; Analytical |
| WOS关键词 | CARBON-PASTE ELECTRODE ; SCREEN-PRINTED ELECTRODES ; FUNCTIONALIZED MESOPOROUS SILICA ; MERCURY FILM ELECTRODE ; COMPOSITE ELECTRODES ; NATURAL-WATERS ; FLOW-INJECTION ; TAP WATER ; TRACE ; CADMIUM |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000266969700054 |
| 资助机构 | Chinese Academy of Sciences [KZCX2-YW-410]; National Natural Science Foundation of China [40776058]; National 863 High Technology Project of the Ministry of Science and Technology of China [2007AA09Z103]; Department of Science and Technology of Shandong P |
| 源URL | [http://ir.yic.ac.cn/handle/133337/3440]  |
| 专题 | 烟台海岸带研究所_近岸生态与环境实验室 |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Environm Chem Lab, Yantai 264003, Peoples R China 2.Yantai Univ, Sch Oceanol, Yantai 264005, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pan, Dawei,Wang, Yuane,Chen, Zhaopeng,et al. Nanomaterial/Ionophore-Based Electrode for Anodic Stripping Voltammetric Determination of Lead: An Electrochemical Sensing Platform toward Heavy Metals[J]. ANALYTICAL CHEMISTRY,2009,81(12):5088-5094. |
| APA | Pan, Dawei,Wang, Yuane,Chen, Zhaopeng,Lou, Tingting,&Qin, Wei.(2009).Nanomaterial/Ionophore-Based Electrode for Anodic Stripping Voltammetric Determination of Lead: An Electrochemical Sensing Platform toward Heavy Metals.ANALYTICAL CHEMISTRY,81(12),5088-5094. |
| MLA | Pan, Dawei,et al."Nanomaterial/Ionophore-Based Electrode for Anodic Stripping Voltammetric Determination of Lead: An Electrochemical Sensing Platform toward Heavy Metals".ANALYTICAL CHEMISTRY 81.12(2009):5088-5094. |
入库方式： OAI收割
来源：烟台海岸带研究所
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