A new 7-hydroxy-3-methyl-benzoxazinone based fluorescent probe for thiophenols has been designed and synthesized. The probe displays highly selective and sensitive detection to thiophenols over other common analytes with instant response and remarkable large Stokes shift. It’s noteworthy that biothiols, aliphatic thiols, and reducing anions do not perturb the sensing of thiophenols. The limit of detection of the probe was calculated as low as 24nM for thiophenols. Finally, the utility of probe was illustrated by the detection of thiophenol in real environmental water samples.

中文翻译：

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基于7-羟基-3-甲基-苯并恶嗪酮的高选择性荧光探针，用于即时检测环境样品中的苯酚

已经设计并合成了一种新的基于7-羟基-3-甲基-苯并恶嗪酮的硫酚荧光探针。该探针显示出对其他常见分析物对苯酚的高度选择性和灵敏检测，并具有即时响应和显着的大斯托克斯位移。值得注意的是，生物硫醇，脂肪族硫醇和还原性阴离子不会干扰硫酚的感测。对于硫酚，探针的检出限经计算低至24nM。最后，通过检测实际环境水样中的苯酚来说明该探针的实用性。