The invention belongs to the technical field of
poultry product detection and relates to a combined detection method of
amantadine,
rimantadine,
ribavirin and
moroxydine residues in eggs. The method comprises the following steps: carrying out low temperature repetitive freeze-thawing on a sample, adding a
formic acid-
methanol solution, mixing, centrifuging, taking a supernatant for standby, adding water saturated n-
hexane, mixing, carrying out ultrasonic treatment, centrifuging to remove n-
hexane floccules on the upper layer with an extracting solution left at the lower layer, purifying with a cation exchange
solid-phase extraction column, measuring by a liquid
chromatography-tandem
mass spectrometer provided with an ESI source, and carrying out accurate qualitative and quantitative analysis on residues of the four antiviral drugs in eggs. The method provided by the invention has high specificity, can accurately and simultaneously measure residual quantity of
amantadine,
rimantadine,
ribavirin and
moroxydine without
pollution, has high sensitivity, and provides
technical support for guaranteeing
quality safety of eggs.