中文摘要：

在无需样品预处理的前提下,将表面解吸常压化学电离质谱法用于日化用品中1,4-二恶烷的直接快速检测。在串联质谱中,选择表面解吸常压化学电离离子源,以碰撞诱导解离反应正离子检测模式进行定性和定量检测。确定了1,4-二恶烷的碎片特征峰分别为m/z 72,45,61和32。1,4-二恶烷的线性范围为0.1～1 000mg·L-1,检出限（3σ）为7.8×10-3 mg·L-1。方法用于洗手液和洗发水的分析,回收率在84.7%～98.5%之间、测定值的相对标准偏差（n=6）在10%～18%之间。

英文摘要：

Surface desorption atmospheric pressure chemical ionization-tandem mass spectrometry （SDAPCI- MS/MS） was applied to the direct and rapid determination of 1,4-dioxane in daily chemo-necessities, without sample preparation and pretreatment. In the MS/MS analysis, SDAPCI was used as ion source, and positive electrospray ionization as well as collision induced dissociation reaction monitoring mode was taken for qualitative and quantitative analysis. The characteristic peaks of the fragments of 1,4-dioxane at m/z 72, 45, 61 and 32 respectively were confirmed. Linearity range of 1,4-dioxane was kept in the range of 0. 1-1 000 mg · L-1 , with value of detection limit （3σ） of 7.8×10 3mg ·L-1. The proposed method was used in the analysis of samples of hand lotion and shampoo, giving values of recovery and RSD＇s in ranges of 84. 7 %-98. 5% and 10 %-18% respectively.