【Abstract】 Trace gasoline residual analysis and identification is often applied in criminal analysis of arson,explosion,murder e.g..We analysis the trace gasoline in medium with SPME and GC-MS,that can identify the trace gasoline residual exactly through analyzing the mass spectrum of chromatogram peaks characters of alkenes,alkyl benzene,indene compounds,and naphthyl compounds,which are from the medium and burning medium.更多还原