GC-MS/MS analysis method for dinitraniline pesticide residues in mainstream cigarette smoke particulate matter

The invention discloses a GC-MS/MS analysis method for dinitraniline pesticide residues in mainstream cigarette smoke particulate matter.The method comprises the following steps that 1, a pesticide standard substance solution is prepared, determination is performed through a gas chromatography-tandem mass spectrum, and fitting is performed to obtain a standard curve; 2, a Cambridge filter trapping the mainstream cigarette smoke particulate matter is vibrated and extracted through acetonitrile, an extracting solution is subjected to dispersive liquid-liquid microextraction to perform centrifugal treatment, and water and carbon tetrachloride are added into the extracting solution to be subjected to dispersive liquid-liquid microextraction, wherein the addition volume size of water to carbon tetrachloride is 1:3-5:0.1-0.3; 3, the centrifuged precipitation facies is determined on the condition of the gas chromatography-tandem mass spectrum, and the determined result is substituted into the standard curve to obtai