光谱学与光谱分析, 2012, 32 (10): 2722, 网络出版: 2012-11-22  

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

Study on Spectral Properties of 5-(Dimethylamino)-N-(4-(2-(2-Hydroxybenzylidene)Hydrazinecarbonyl)Phenyl)Naphthalene-1-Sulfonamide for Selective Detection of Zn2+
作者单位
1 辽宁工业大学化学与环境工程学院, 辽宁 锦州121001
2 大连理工大学精细化工国家重点实验室, 辽宁 大连116012
摘要
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。
Abstract
A novel dansyl sulfonamide-based fluorescence probe DH1 [(E)-5-(dimethylamino)-N-(4-(2-(quinolin-2-ylmethylene)hydrazinecarbonyl)phenyl)aphthalene-1-sulfonamide] was synthesized for detection of Zn2+. Spectral properties of DH1 such as UV-Vis, fluorescence spectra and ESI-MS for recognition of Zn2+ were studied. Spectrophotometric titration and ESI-MS spectra indicate the formation of a 1∶1 complex of Zn2+ with DH1. The results show that DH1 has high quantum yield of 0.53 and low the detection limit of 1.0×10-7 mol·L-1 for detection of Zn2+ in acetonitrile/water(9∶1, volume ratio). Moreover, no fluorescence intensity changes were observed in the presence of other common metal ions such as K+, Li+, Na+, Mg2+, Ca2+, Cr3+, Mn2+, Ni2+, Pb2+, Cu2+, Cd2+, Co2+, Fe2+ and Hg2+, indicating that DH1 has excellent selectivity and high sensitivity for detection of Zn2+.

吴红梅, 郭宇, 周硼. 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[J]. 光谱学与光谱分析, 2012, 32(10): 2722. WU Hong-mei, GUO Yu, ZHOU Peng. Study on Spectral Properties of 5-(Dimethylamino)-N-(4-(2-(2-Hydroxybenzylidene)Hydrazinecarbonyl)Phenyl)Naphthalene-1-Sulfonamide for Selective Detection of Zn2+[J]. Spectroscopy and Spectral Analysis, 2012, 32(10): 2722.

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