It is important to develop fluorescent probes for rapid, selective, and sensitive detection of highly toxic hydrazine in both environmental and biological science. In this text, under mild conditions, a novel near-infrared (NIR) ratiometric and on–off fluorescent probe 1 was synthesized based on hemicyanine and coumarin derivatives, which can detect hydrazine with high selectivity and anti-interference over other amines, biological species, anions and metal ions. The limit of quantification (LOQ) value was 0–400 μM and the detection limit could be as low as 560 nM.

中文翻译：

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肼的新型近红外比率荧光探针†

开发用于快速，选择性和灵敏地检测环境和生物科学中的剧毒肼的荧光探针非常重要。本文在温和条件下，基于半菁和香豆素衍生物合成了一种新型的近红外（NIR）比例式和开-关式荧光探针1，该探针可以检测肼，对其他胺类，生物物种具有高选择性和抗干扰性，阴离子和金属离子。定量限（LOQ）值为0–400μM，检测限可能低至560 nM。