单颗粒气溶胶实时在线监测飞行时间质谱仪的研制  

Development of the real-time single particle aerosol time of flight mass spectrometer

作　　者：张芳[1] 王淑芳[2] 郭长娟[1] 粘慧青[1] 赵栋[1] 黄正旭[1] 高伟[1] 董俊国[3] 周振[1] 

机构地区：[1]中国科学院广州地球化学研究所有机地球化学国家重点实验室 [2]长春师范学院,长春130032 [3]上海大学环化学院环境污染与健康研究所,上海200072

出　　处：《现代仪器》2008年第1期49-52,共4页Modern Instruments

摘　　要：介绍国内第一台采用空气动力学透镜进样系统的质谱仪。这种系统有效地提高进样效率和检测效率。本仪器优化双光束测径装置和激光解析电离装置的空间结构,缩短气溶胶漂移空间从而提高小颗粒的检测极限。The inlet system of the real-time single particle aerosol time of flight mass spectrometer（SP-ATOFMS） takes the aerodynamic lens as the main body. The sort of method can availably raise the efficiency of sizing and detection. The SP-ATOFMS which combines dual laser beam diameter measurement with the bipole orthogonal-injection time of flight mass spectrometer can monitor the single aerosol grain diameter and the chemistry composition in the meantime. The structure of orthogonal injection time of flight mass spectrometer which includes double accelerating electric fields and double reflex electric fields can availably raise the resolution.

关 键 词：溶胶 飞行时间质谱仪 双光束测径 

分 类 号：TQ426.62[化学工程] TL817.8[核科学技术—核技术及应用]