Fluorescence 'Turn-on' Dual Sensor for Selective Detection of Cd2+ and H2AsO4- in Water

被引：4

作者：

Samanta, Shashanka Shekhar ^{[1
]}

Giri, Prabhat Kumar ^{[1
]}

Mudi, Naren ^{[1
]}

Mandal, Usha ^{[1
]}

Misra, Ajay ^{[1
]}

机构：

[1] Vidyasagar Univ, Dept Chem, Midnapore 721102, West Bengal, India

来源：

JOURNAL OF FLUORESCENCE | 2023年 / 33卷 / 02期

关键词：

Fluorescence; Sensor; Cd2+; H2AsO4-; INHIBIT logic gate; ARSENIC CONTAMINATION; SCHIFF-BASE; CHEMOSENSOR; NANOPARTICLES; SAMPLES; SPECIATION; CADMIUM; ZN(II); LEVEL; STATE;

D O I：

10.1007/s10895-022-03091-1

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A multi responsive fluorescent probe, N',2-bis(E-4-(diethylamino)-2-hydroxybenzylidene)hydrazine-1-carbothiohydrazideV(H2L) has been synthesized through one step condensation method. Probe, H2L shows 'turn-on' dual sensing properties towards Cd2+ and H2AsO4- at two distinct wavelength. The probe (H2L) is spectroscopically characterized and the chemo-sensing mechanism has been demonstrated through H-1 NMR, absorption, steady state and time resolved emission study. The most promising advantage of the probe is its application in the one-pot detection of Cd2+ (lambda(em) = 462 nm) and H2AsO4-(lambda(em) = 492 nm) where intense emission appears at two different wavelengths and the observed limit of detection (LOD) of H2L towards Cd2+ and H2AsO4- are 2.67 x 10(-8) M and 5.14 x 10(-6) M respectively. Further the 'turn-on' emission property of H2L towards Cd2+ is applied to construct INHIBIT logic gate.

引用

页码：517 / 526

页数：10

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