在自行研制的离子迁移谱仪器上,制备了反应离子质子化水团蔟离子[H+(H2O)n],并研究了甲基异戊酮的迁移谱。甲基异戊酮的产物离子峰的个数由浓度决定,当浓度在0.004μg/L时出现一个产物离子峰,当浓度达到0.1μg/L时出现两个产物离子峰,当浓度达到1μg/L时出现一个产物离子峰。甲基异戊酮与反应离子发生反应,生成单体团簇离子和二聚体团簇离子。实验测量了各种离子的约化迁移率。 On the ion mobility spectrometer developed by ourselves, the ion protonated water cluster ions [H + (H2O) n] were prepared and the migration spectra of methyl isoamyl ketone were studied. The number of product ion peaks of methyl isoamyl ketone is determined by the concentration. When the concentration of the product is 0.004μg / L, a product ion peak appears. When the concentration reaches 0.1μg / L, two product ion peaks appear. When the concentration reaches 1μg / L when a product ion peak. Methyl isoamyl ketone reacts with the reactive ions to generate monomer cluster ions and dimeric cluster ions. The experiment measured the reduced mobility of various ions.