[Determination of amantadine, rimantadine and dimethylamantadine residues in poultry by ultra-performance liquid chromatography-tandem mass spectrometry].

Objective: To establish a method for determination of amantadine, rimantadine and dimethylamantadine residues in poultry matrix by ultra-performance liquid chromatography-tandem mass spectrometry.

Methods: Poultry samples were extracted with acid acetonitrile, salting out, and then the organic phase was cleaned up by C_(18) and PSA. A Waters ACQUITYTM UPLC HSS T3 column(100 mm×2.1 mm, 1.7 mm)was used for liquid chromatography separation, ESI positive ion scan was used with multiple reaction monitoring(MRM) mode and quantified by matrix-matched external standard method.

Results: At the spiked level of 0.5, 1.0 and 5.0 μg/kg, the recoveries of each compound were in the range of 81.3%-91.1% with the relative standard deviations of 6.5%-11.3%. The qualitative limits of detections were 0.06-0.2 μg/kg and the quantitative limits were 0.2-0.5 μg/kg for the 3 target compounds. The established method was applied to the detection of the 3 target compounds in 30 poultry samples, and none of the target compounds exceeded the residue limits.

Conclusion: The method is simple, rapid, high sensitivity and good stability, with a wide variety and a certain development. It can be used for the daily monitoring of the veterinary drug residues in poultry.