Recently, the construction of multiple analytes responsive fluorescent probes with distinct emission signals has attracted widely attention. Thus, we have designed and synthesized a new fluorescent probe, 2-(2-hydroxyphenyl)benzothiazole dye skeleton (HBT-1), for the detection of sulfur dioxide and hydrazine. Significant fluorescence enhancements in two distinct emission bands (λ_em = 464 nm and 498 nm) were generated when HBT-1 reacted with sulfur dioxide derivatives or hydrazine, respectively. Furthermore, the probe HBT-1 response can be saturated surpurisingly at the low concentration (100 μM), shorter reaction time for sulfur dioxide derivatives, while a longer reaction time and greater concentration (400 μM) for hydrazine. In other words, the probe HBT-1 can detect sulfur dioxide derivatives without hydrazine interference at low analyte concentrations.

最近，具有不同发射信号的多种分析物响应型荧光探针的构建引起了广泛关注。因此，我们设计并合成了一种新型的荧光探针2-（2-羟苯基）苯并噻唑染料骨架（HBT-1），用于检测二氧化硫和肼。 当HBT-1分别与二氧化硫衍生物或肼反应时，在两个不同的发射带（_λem = 464 nm和498 nm）中产生了显着的荧光增强。此外，探针HBT-1低浓度（100μM），二氧化硫衍生物的反应时间短，肼的反应时间长，浓度大（400μM）大时，反应会令人惊奇地饱和。换句话说，探针HBT-1可以在低分析物浓度下检测二氧化硫衍生物而不会受到肼的干扰。