A method for residual toluene detection in medical plasters is described with a purge and trap pre_concentration system and selective ion monitoring(SIM) by GC_MS.

• 建立了一种吹扫-捕集进样与气相色谱-质谱联用、选择离子监测的方式，测定样品中甲苯溶剂残留的方法。