A New Spiropyran-Based Sensor for Colorimetric and Fluorescent Detection of Divalent Cu2+ and Hg2+ Ions and Trivalent Ce3+, Cr3+ and Al3+ Ions

被引：18

作者：

Wang, Yufen ^{[1
]}

Xu, Zhenxiang ^{[2
]}

Dai, Xuhang ^{[1
]}

Li, Hongqi ^{[1
]}

Yu, Shunjie ^{[1
]}

Meng, Weidong ^{[1
]}

机构：

[1] Donghua Univ, Coll Chem Chem Engn & Biotechnol, 2999 North Renmin Rd, Shanghai 201620, Peoples R China

[2] Penglai Xinguang Pigment Chem Co Ltd, Penglai 265601, Peoples R China

来源：

JOURNAL OF FLUORESCENCE | 2019年 / 29卷 / 03期

关键词：

Spiropyran; Fluorescent sensor; Colorimetric; Cu2+ and Hg2+; Al3+; Cr3+ and Ce3+; SCHIFF-BASE; SINGLE-MOLECULE; AQUEOUS-MEDIA; COUMARIN; CHEMOSENSOR; PROBE; MERCURY; CU(II); RECOGNITION; OXIDATION;

D O I：

10.1007/s10895-019-02372-6

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A new spiropyran derivative acts as colorimetric and fluorescent sensor for metal ions. Addition of Cu2+, Al3+, Cr3+ and Ce3+ to the sensor solution brings about marked increase in the absorption intensities while addition of other metal ions (Na+, K+, Li+, Sr2+, Hg2+, Zn2+, Co2+, Ni2+ and Ag+) fails to cause substantial change in the UV-Vis spectra. The sensor can be used for detection of Hg2+, Cu2+, Ce3+, Cr3+ and Al3+ ions by the naked eye and by fluorescence enhancement. The detection limit of Cu2+ and Hg2+ ions by the sensor is estimated to be 10 and 14 mu M, respectively. Job's plot analysis on the sensor-Cu2+ complexation reveals the formation of a 2:1 stoichiometric complex between the sensor and Cu2+ ion.

引用

页码：569 / 575

页数：7

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