A dual probe for selective sensing of Zn (II) by fluorescent and Cu (II) by colorimetric methods in different systems based on 7,8-benzochromone-3-carbaldehyde -(fluorescein)hydrazone

被引：22

作者：

Sun, Jie ^{[1
]}

Li, Tian-rong ^{[1
]}

Liu, Cong ^{[1
]}

Xue, Jia ^{[1
]}

Tian, Li-mei ^{[1
]}

Liu, Kui ^{[1
]}

Li, Si-liang ^{[1
]}

Yang, Zheng-yin ^{[1
]}

机构：

[1] Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2021年 / 406卷

基金：

中国国家自然科学基金;

关键词：

Fluorescent probe; Benzochromone hydrazone; Zn2+; Cu2+; Colorimetry; SCHIFF-BASE; ZINC; COPPER; ZN(II); SENSOR; IONS; DISEASE; CU(II); DIPICOLYLAMINE; COORDINATION;

D O I：

10.1016/j.jphotochem.2020.113007

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, a novel fluorescent probe sensor, 7,8-benzochromone-3-carbaldehyde (fluorescein)hydrazone L, was designed and synthesized. Based on the photoinduced electron transfer (PET) process, L can detect Zn2+ in the solution of EtOH/H2O (9/1, V/V). The probe had high selectivity and sensitivity to Zn2+ with a lower detection limit of 3.4 x 10(-7) M. Furthermore, the coordination ratio of L-Zn2+ was 1:1, which could be corroborated by Job's plot. In addition, in the EtOH/H2O (5/2, V/V) solution of the probe L, Cu2+ was added to produce a marked change in color from achromatous to yellow, indicating that the probe L could detect Cu2+ by colorimetry, which was detectable by the naked eye, simply and quickly. According to the Benesi-Hildebrand equation, the complexing constants values of L-Zn2+ and L-Cu2+ were 9.8 x 10(4) M-1 and 1.009 x 10(5) M-1, respectively.

引用

页数：7

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