“…Therefore, the simultaneous detection of 2,4-DA and 2,4-DCP in the environment is urgent for the protection of public health. At present, there are numerous reported traditional methods for detecting 2,4-DA or 2,4-DCP alone, which include gas chromatography–mass spectrometry, mass spectrometry, surface-enhanced Raman scatting, and electrochemical sensors. − However, there are few reports on the simultaneous detection of 2,4-DA and 2,4-DCP . In addition, these methods suffer from the problems of complex instruments, high cost, time-consuming, and low selectivity. − Fluorescence sensor has been widely used in the field of analysis because of the high sensitivity toward targets .…”