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5-(二甲基氨基)-N-(4-(2-(2-羟基亚苄基)甲酰肼基)苯基)萘-1-磺酰胺的合成及对锌离子识别的光谱性能研究

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Indexed by:期刊论文

Date of Publication:2012-10-01

Journal:光谱学与光谱分析

Included Journals:SCIE、EI、PKU、ISTIC、CSCD、Scopus

Volume:32

Issue:10

Page Number:2722-2725

ISSN No.:1000-0593

Key Words:锌离子;荧光探针;丹磺酰胺;识别

Abstract:合成了含有丹磺酰胺荧光团的新型Zn2+荧光探针DH1(5-(二甲基氨基)-N-(4-(2-(2-羟基亚苄基)甲酰肼基)苯基)萘-1-磺酰胺),利用光谱法研究它对锌离子的识别作用.光谱滴定和ESI-MS谱分析表明DH1与Zn2+以1∶1的化学计量数配位.在CH3CN/H2O(φ,9∶1)体系中,DH1与Zn2+结合后荧光显著增强,量子产率高达0.53,荧光检测限达到1.0×10-7 mol·L-1,而其他常见金属离子,如K+,Li+,Na+,Mg2+,Ca2+,Cr3+,Mn2+,Ni2+,Pb2+,Cu2+,Cd2+,Co2+,Fe2+及Hg2+不引起荧光光谱变化.结果表明,DH1对锌离子识别具有较高的选择性和灵敏度.

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