| 新型钯荧光探针的应用研究 | |
| 周艳梅 ; 徐文国 ; 童爱军 ; ZHOU Yan-mei ; XU Wen-guo ; TONG Ai-jun | |
| 2010-06-07 ; 2010-06-07 | |
| 关键词 | N-1-萘基乙二胺 荧光猝灭 palladium N-(1-naphthyl)ethylene diamine fluorescence quenching O657.15 |
| 其他题名 | Study of New Fluorescence Probe of Palladium |
| 中文摘要 | 研究了市售荧光试剂N-1-萘基乙二胺(NPED)作为荧光探针测定钯的新方法.在pH 4.0的溶液中,N-1-萘基乙二胺与钯发生反应形成络合物,使NPED荧光猝灭,猝灭程度与钯的浓度在5×10-7~6×10-6mol/L范围内呈线性关系,检测限3.8×10-7mol/L;由NPED在不同酸度溶液中的荧光光谱变化,测定了其共轭酸的酸离解常数pKa1和pKa2,探讨了猝灭机理;有常见金属离子及共存贵金属离子Pt4+不干扰测定.实验用的荧光试剂价廉易得,方法操作简单、快速,选择性好,已用于钯催化剂及环境水样中钯含量测定.; A simple and sensitive fluorimetric method has been developed for the determination of trace palladium with N-(1-naphthyl)ethylene diamine(NPED) as a fluorescence reagent.The method is based on the complex formation between Pd(Ⅱ) and NPED at pH 4.0 with fluorescence quenching of NPED.The calibration curve is linear over the Pd(Ⅱ) concentration range of 5.0×10~(-7)～6.0×10~(-6)?mol/L,with a detection limit of 3.8×10~(-7)?mol/L.Platinum(Ⅳ) and other diverse metal ions do not disturb with Pd(Ⅱ) determination.The proposed method has been applied to the determination of Pd(Ⅱ) in palladium-containing catalysts and water samples with satisfactory results.; 国家自然科学基金资助项目(20375021) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/40502]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 周艳梅,徐文国,童爱军,等. 新型钯荧光探针的应用研究[J],2010, 2010. |
| APA | 周艳梅,徐文国,童爱军,ZHOU Yan-mei,XU Wen-guo,&TONG Ai-jun.(2010).新型钯荧光探针的应用研究.. |
| MLA | 周艳梅,et al."新型钯荧光探针的应用研究".(2010). |
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