A benzothiazole-based fluorescent and colorimetric chemosensor BZD ((E)-2-(benzo[d]thiazol-2-yl)-5-((4-(diethylamino)-2-hydroxybenzylidene)amino)phenol) was applied for detecting ClO⁻. BZD showed fluorescence quenching and color variation for ClO⁻ via oxidative reaction between ClO⁻ and the imine bond. It could effectively detect ClO⁻ over various competitive analytes. Detection limit for ClO⁻ was calculated to be 1.74 μM by fluorescent method and 16.44 μM by colorimetric one, respectively. Additionally, BZD could be utilized for sensing ClO⁻ in zebrafish, real water sample and paper strip. The photophysical characteristics and sensing mechanism of BZD to ClO⁻ were studied by fluorescent and UV–visible spectroscopy, NMR titration, and ESI-mass spectrometry.

一种基于苯并噻唑的荧光比色化学传感器BZD ((E)-2-(benzo[d]thiazol-2-yl)-5-((4-(diethylamino)-2-hydroxybenzylidene)amino)phenol) 用于检测二氧化氯^-。BZD通过 ClO ^-和亚胺键之间的氧化反应显示了 ClO ^-的荧光猝灭和颜色变化。它可以有效地检测 ClO ^-超过各种竞争性分析物。^{ClO -}的检测限通过荧光法计算为 1.74 μM，通过比色法计算为 16.44 μM。此外，BZD可用于感测 ClO ^-在斑马鱼、真实水样和纸条中。通过荧光和紫外-可见光谱、核磁共振滴定和 ESI 质谱研究了BZD对 ClO ^-的光物理特性和传感机制。