“…Up to now, many methods have been developed for detecting CIP, including high‐performance liquid chromatography [10, 11], liquid chromatography–tandem mass spectrometry [12, 13], fluorescence spectroscopy [14], electrochemical methods [15, 16], electrochemiluminescence [17], immunoassays [18], and so forth [19–21]. Among them, the advantages of using fluorescence methods for CIP detection lie in their high sensitivity, selectivity, real‐time monitoring capabilities, adaptability to various formats, relatively simple operation process, and low cost.…”