A single-fluorophore-based ratiometric fluorescent probe based on anthracene carboximide was developed for detection of formaldehyde. In the presence of formaldehyde, the fluorescence emission would change from red to yellow-green, and the probe showed excellent sensitivity, selectivity and anti-interference. Furthermore, the response mechanism was illustrated to be that change in fluorescent signal is resulted from variation of substituent group on the 6th position of anthracene ring. A test paper was developed by loading probe onto filter paper strip. With this test paper, the detection of gaseous formaldehyde could be carried out conveniently, visually and quickly. 2009 Elsevier Ltd. All rights reserved.

开发了基于蒽碳羧酰亚胺的基于单荧光团的比例荧光探针，用于检测甲醛。在甲醛的存在下，荧光发射将从红色变为黄绿色，并且探针显示出极好的灵敏度，选择性和抗干扰性。此外，反应机理被说明为荧光信号的变化是由蒽环第6位上的取代基的变化引起的。通过将探针加载到滤纸条上来开发测试纸。使用该试纸，可以方便，直观和快速地进行气态甲醛的检测。2009 Elsevier Ltd.保留所有权利。