A simple and rapid fluorescent approach for Pb2+ determination and application in water samples and living cells

被引：20
作者：
Jiang, Chunyu [1 ]
Yang, Liu [1 ]
Li, Ping [1 ]
Liu, Yulong [1 ]
Li, Shijie [2 ]
Fu, Ying [1 ]
Ye, Fei [1 ]
机构：
[1] Northeast Agr Univ, Dept Chem, Coll Arts & Sci, Harbin 150030, Peoples R China
[2] Northeast Agr Univ, Coll Life Sci, Harbin 150030, Peoples R China
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2021年 / 263卷
关键词：
Thiosemicarbazide-appended 1,8-naphthalimide; Fluorescent probe; Pb2+; Target lysosomes; Water samples; SENSITIVE DETECTION; COLORIMETRIC SENSORS; AQUEOUS-SOLUTION; HIGH SELECTIVITY; PROBE; IONS; CHEMOSENSOR; LEAD; CADMIUM; CATIONS;
D O I：
10.1016/j.saa.2021.120168
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
A novel selective fluorescent chemosensor, thiosemicarbazide-appended naphthalimide derivative (TND), has been designed and synthesized, which exhibited good selectivity and sensibility for Pb2+ in CH3CN:H2O (1:1) solution. The probe TND showed obvious color changes under UV light of 365 nm and displayed turn-on fluorescence response with Pb2+ added. The binding mode of TND with Pb2+ was found to be 1:1 based on the Job's plot analysis. The detection limit of Pb2+ was 4.7 nM, which is far below the allowable concentration determined by WHO in drinking water. Moreover, the fortified recoveries of Pb2+ were from 100.54% to 113.68% in water samples. TND is also applied for fluorescence imaging of Pb2+ in lysosomes of human stromal cell line (HSC). This study indicated that TND would be a potential sensor detecting Pb2+ in real sample. (C) 2021 Elsevier B.V. All rights reserved.
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页数：9
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