大气气溶胶单粒子粒径和化学成分的LDI测量

LASER DESORPTION IONIZATION MASS SPECTROMETRY FOR THE MEASUREMENT OF SIZE AND CHEMICAL COMPONENTS OF INDIVIDUAL AEROSOL PARTICLES

摘要: 介绍了当前应用较为广泛的大气气溶胶单粒子粒径与化学成分实时在线测量技术——激光解吸附电离（LDI）飞行时间质谱技术的原理和在气溶胶单粒子化学成分测量领域的应用.此外，还对气溶胶单粒子进样系统和气溶胶单粒子粒径的测量方法作了详细阐述.

Abstract: The principle and application of laser desorption ionization time-of-flight mass spectrometry, widely used in on-line measurements of the size and chemical components of individual atmospheric aerosol particles are reviewed. The aerosol inlet system and measurement of individual particle size are described in detail.