Aerosol mass spectrometry is the application of mass spectrometry to aerosol particles. Aerosol particles are defined as suspended solid and liquid particles with size range of 0.1 nm to 1000 μm in diameter. Aerosol particles are produced from natural and anthropogenic sources, through a variety of different process that include; wind-blown suspension, and combustion of fossil fuels and biomass. Analysis of aerosol particles is important because of their major impacts on the global climate change, visibility, regional air pollution and human health. Aerosol particles are very complex in structure and can contain thousand of different chemical compounds within a single particle. Due to this complexity the instrumentation used to analysis these particles must have the ability to separate bas