离子迁移谱仪迁移管中电场均匀性的研究  

Research of the Uniformity of the Electric Field in Ion Mobility Spectrometer Drift Tube

作　　者：时迎国[1] 杜明娟[1] 

机构地区：[1]辽宁石油化工大学,抚顺113001

出　　处：《科学技术与工程》2010年第19期4752-4754,4766,共4页Science Technology and Engineering

摘　　要：在理论分析、计算机模拟的基础上,自行研制了一台以真空紫外灯电离为电离源的离子迁移谱仪,并通过该仪器详细研究了迁移管中电场的空间均匀性。发现迁移管内径20 mm,外径40 mm,金属环厚1 mm,聚四氟乙烯厚6 mm的结构能够保证迁移管内电场比较均匀。Based on theoretical analysis and computer simulation, we made a ionization ion mobility spectrometer which uses a vacuum ultraviolet light lamp to ionizing source. Detailed studied the space uniformity of electric field in self made in ion mobility spectrometer drift tube. When the inner diameter of the drift tube is about 30 mm, the outer diameter of the drift tube is about 50 mm, the thickness of the metal ring is 1 mm, and the thickness of the PTFE ring is 1 mm could guarantee the space uniformity of electric field in the ion mobility spectrometer drift tube.

关 键 词：离子迁移谱 迁移管 真空紫外电离 丙酮 

分 类 号：O657.15[理学—分析化学]