| 2,3,7-三羟基-9-(2,4-二羟基)苯基荧光酮荧光猝灭法测定微量铅 |
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| 引用本文： | 杜容山,王咏梅,黄应平,余丽,贾丽婷.2,3,7-三羟基-9-(2,4-二羟基)苯基荧光酮荧光猝灭法测定微量铅[J].三峡大学学报(自然科学版),2015,37(1):105-108. |
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| 作者姓名： | 杜容山 王咏梅 黄应平 余丽 贾丽婷 |
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| 作者单位： | 1. 宜昌市环境保护监测站,湖北宜昌,443000
2. 三峡大学三峡库区生态环境教育部工程研究中心,湖北宜昌,443002 |
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| 基金项目： | 国家“十二五”水专项子课题，科技惠民计划项目 |
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| 摘 要： | 在pH 7.60 NH3·H2O-NH4Cl缓冲溶液中,阳离子表面活性剂十六烷基三甲基溴化胺(Cetyltrime-thylammonium Bromide,CTMAB)存在下,利用Pb2+与2,3,7-三羟基-9-(2,4-羟基)苯基荧光酮(2,3,7-trihy-droxy-9-(2,4-dihydroxy)phenyl fluorone,DHPF)配位产生荧光猝灭效应,建立了荧光猝灭法测定微量Pb2+的新方法.实验结果表明,Pb2+与DHPF形成1∶2配位化合物,Pb2+含量在0~1.60μg/5mL范围内与ΔF成线性关系,回归方程为ΔF=294.841 7×C+4.715 6(C:μg/5mL),相关系数r=0.999 1,方法用于狗牙根中Pb2+含量测定,结果满意.
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| 关 键 词： | 2 3 7-三羟基-9-(2 4-羟基)苯基荧光酮 荧光猝灭法 狗牙根 铅 |
Determination of Trace Lead by Fluorescence Quenching Method with 2,3,7-Trihy-Droxy-9-(2,4-Dihydroxy) Phenyl Fluorone |
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| Du Rongshan,Wang Yongmei,Huang Yingping,Yu Li,Jia Liting.Determination of Trace Lead by Fluorescence Quenching Method with 2,3,7-Trihy-Droxy-9-(2,4-Dihydroxy) Phenyl Fluorone[J].Journal of China Three Gorges University(Natural Sciences),2015,37(1):105-108. |
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| Authors: | Du Rongshan Wang Yongmei Huang Yingping Yu Li Jia Liting |
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| Institution: | Du Rongshan;Wang Yongmei;Huang Yingping;Yu Li;Jia Liting;Yichang Environmental Monitoring Central Station;Engineering Research Center of Eco-environment in Three Gorges Reservoir Region,Ministry of Education,China Three Gorges Univ.; |
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| Abstract: | |
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| Keywords: | 2 3 7-trihydroxy-9-(2 4-dihydroxy)phenyl fluorone fluorescence quenching method cynodon dactylon lead |
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