A ratiometric fluorescent probe for sensitive and selective detection of chromium (VI) in aqueous solutions
文献类型： 外文期刊
作者： Zhang, Di 1 ; Jia, Bin 1 ; Li, Man 1 ; Guo, Jie 1 ; Wang, Tieliang 1 ; Cao, Cheng 1 ; Wang, Yun 1 ; Liu, Jihong 1 ;
作者机构： 1.Henan Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Zhengzhou 450002, Peoples R China
2.Henan Cereal Qual & Safety Testing Key Lab, Zhengzhou 450002, Peoples R China
3.Minist Agr, Lab Qual & Safety Risk Assessment Agroprod Zhengz, Zhengzhou 450002, Peoples R China
关键词： Cr(VI); ESIPT; Ratiometric; Fluorescence; Oxidation
期刊名称：MICROCHEMICAL JOURNAL （ 影响因子：4.821； 五年影响因子：4.364 ）
ISSN： 0026-265X
年卷期： 2020 年 159 卷
页码：
收录情况： SCI
摘要： A new ratiometric fluorescent probe for sensitive and selective detection of chromium(VI) under acidic conditions using spirolactamized benzothiazole-substituted N,N-diethylrhodol (Cr6P1) was developed. The probe Cr6P1 showed excellent ratiometric selectivity and high sensitivity for Cr(VI) in acidic solutions, and the detection limit for Cr(VI) was as low as 13 nM (6.9 x 10(-4) mg/L). As far as we know, this is the first ratiometric probe based on small organic fluorescence molecules for the detection of Cr(VI). The probe was also applied for detecting Cr(VI) by fluorescent test strips and in the analysis of actual water samples with satisfactory results.
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