Simultaneous Screening and Determination of Five Kinds of 26 Veterinary Drug Residues in Pork by Liquid Chromatography-Quadrupole-Time of Flight Mass Spectrometry
A analytical method was established for the simultaneous screening and determination of 26 veterinary drugs,including 14 sulfonamides,4 β-agonists,2 fluoroquinolones,3 tetracyclines and 3 organic phosphorus pesticides,in pork by liquid chromatography- quadrupole- time of flight mass spectrometry( HPLC- Q- TOF- MS). The QuEChERS( Quick,Easy,Cheap,Effective,Rugged,and Safe) method was used for sample preparation. The samples were extracted with acidified acetonitrile- methanol( 1% acetic acid,10% methanol),an...