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A high-performance liquid chromatography-fluorescence detection method was developed for the simultaneous determination of thiodicarb and its degradation product methomyl in animal-derived food products, including chicken muscle, beef, pork, table eggs, and milk. Thiodicarb is known to degrade during analysis; therefore, a thorough investigation was carried out, revealing that thiodicarb degrades...
A new high-performance liquid chromatography with fluorescence detection (HPLC-FLD) method was developed for determination of piperazine residues in food animal products. Samples were extracted with formic acid in water and purified using the PCX cartridge. Following purification, the samples were derivatized using dansyl chloride, and the analyte was separated using water/acetonitrile as a mobile...
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