| 三乙醇胺增敏催化过氧化氢氧化罗丹明6G固体基质室温磷光法测定痕量钴 |
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| 引用本文： | 孙莉娜.三乙醇胺增敏催化过氧化氢氧化罗丹明6G固体基质室温磷光法测定痕量钴[J].漳州职业技术学院学报,2007,9(2):33-35,44. |
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| 作者姓名： | 孙莉娜 |
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| 作者单位： | 漳州职业技术学院,食品与生物工程系,福建,漳州,363000 |
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| 摘 要： | 基于硼砂-盐酸缓冲溶液(pH=8．40)中及Pb~(2 )微扰条件下,Rhod．6G-Na_2B_4O_7-HCl-TEA-H_2O_2体系在滤纸基质上能发射强而稳定的室温磷光(RTP),Co~(2 )能催化过氧化氢氧化罗丹明6G(Rhod．6G),导致其RTP剧烈猝灭,而三乙醇胺(TEA)可增敏室温磷光的猝灭程度,据此提建立了催化过氧化氢氧化罗丹明6G固体基质室温磷光法测定痕量钴的新方法测定TEA存在时体系的△Ip值,发现比不加TEA时增敏3倍。钴(Ⅱ)量为0．0048～192(fg/斑)(对应浓度范围0．012～480pg/mL,0．4μL点样量)与△Ip值成线性关系,其工作曲线的回归方程△Ip=-44．46 201．4×m_(Co2 )(fg/斑), n=6,相关系数r=0．9992,检出限为0．0006fg/斑(对应浓度为0．0015 pg/mL),同时测定固体基质室温磷光寿命τ=11．8ms,本方法简便、快速、灵敏,结果准确。
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| 关 键 词： | 催化固体基质室温磷光增强法 钴(Ⅱ) 罗丹明6G TEA增敏 |
| 文章编号： | 1673-1417（2007）02-0033-03 |
| 修稿时间： | 2007-01-16 |
Determination Of trace cobalt by Solid Substrate-Room Temperature Phosphorimetry Based on CatalyticOxidizing Reaction Of Rhodamine6G and Hydrogen Beroxide Using Triethanolamine as Sensitizer |
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| SUN Li-na.Determination Of trace cobalt by Solid Substrate-Room Temperature Phosphorimetry Based on CatalyticOxidizing Reaction Of Rhodamine6G and Hydrogen Beroxide Using Triethanolamine as Sensitizer[J].Journal of Zhangzhou Technical Institute,2007,9(2):33-35,44. |
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| Authors: | SUN Li-na |
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| Institution: | Department of Food and Biological Engineering, Zhangzhou Institute of Technology, Zhangzhou 363000, P.R. China |
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| Abstract: | |
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| Keywords: | Solid substrate room-temperature phosphorrimetry Cobalt Rhodamine6G Sensitization by triethanolamine |
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