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Abstract: A simple and sensitive method based on molecularly imprinted solid-phase extraction coupled with liquid chromatography-tandem mass spectrometry was developed for the determination of the residues of ten macrolide drugs in swine, cattle and chicken muscles samples. The molecularly imprinted polymers (MIPs) were synthesized using tylosin as a template and methacrylic acid as a functional monomer. Samples were extracted with sodium borate buffer solution and ethyl acetate, and purified by the MIP cartridge. The results showed that the cartridge exhibited good recognition performance for macrolides, and better purification effect than the traditional solid-phase extraction cartridges. Recoveries of analytes at three spiking levels 1, 5 and 20 μg kg-1 ranged from 60.7% to 100.3% with the relative standard deviations less than 14%. The limits of detection of the method were between 0.1 and 0.4 μg kg-1. The method is useful for the routine monitoring of the residues of macrolide drugs in animal muscles
Template and target information: tylosin, macrolide drugs, azithromycin, AZI, tulathromycin, TUL, tilmicosin, TIL, erythromycin, ERY, kitasamycin, KIT, spiramycin, SPM, roxithromycin, ROX, josamycin, JOS, clarithromycin, CLA, medecamycin, MED
Author keywords: Macrolide drugs, Molecularly imprinted polymers, Solid-phase extraction, LC-MS, MS, Animal muscles