Extensive attention has been paid to develop effective systems for the detection of formaldehyde, carbon monoxide and phosgene due to their extreme toxicity and ready accessibility. Numerous methods have been developed for the design and detection of these substances nowadays, such as electro-fluorescent biosensors, piezoelectric sensors, semiconductor sensors, colorimetric probes, quartz crystal microbalance, Raman spectroscopy, transmission electro-microscopy (TEM), gas chromatography, liquid chromatography and X-ray diffraction (XRD), but fluorescent probes, which rely on chemical reactions between the probes and the target, provoking a dramatic fluorescence change, often remain the most commonly employed method for detecting such important small molecules. This review will cover the most significant developments in fluorescent probes for the detection of the carbonyl species formaldehyde, carbon monoxide and phosgene in recent years (typically the last 10 years), with a special emphasis on their mechanisms and applications.

由于甲醛，一氧化碳和光气具有极高的毒性和可及性，因此已经广泛关注开发检测甲醛，一氧化碳和光气的有效系统。如今，已经开发出许多方法来设计和检测这些物质，例如电致荧光生物传感器，压电传感器，半导体传感器，比色探针，石英晶体微量天平，拉曼光谱，透射电镜（TEM），气相色谱法，液体色谱和X射线衍射（XRD），但是荧光探针依赖于探针和靶标之间的化学反应，引起剧烈的荧光变化，通常仍然是检测此类重要小分子的最常用方法。