Organic compound comprehensive testing instrument, abbreviated as HPLC, is an analytical method for separating organic substances. It is an important branch of chromatography, which uses liquid as the mobile phase and employs a high-pressure infusion system to pump single solvents or mixed solvents, buffers, and other mobile phases with different polarities into a chromatographic column containing a stationary phase. After the components in the column are separated, they enter the detector for detection, thereby achieving analysis of the sample. This method has become an important application of separation and analysis technology in disciplines such as chemistry, medicine, industry, agriculture, commodity inspection, and legal inspection.