In this project we will build an electrospray based thermal desorption chemical ionization mass spectrometer, and use it to measure the chemical composition of sub-100 nm aerosol particles. We will build a CFD model of the ionization inlet, and based on that build a new and better inlet. After that we will study the suitability of new ionizations chemistries for detection of atmospherically relevant molecules. We will calibrate the new inlet and use it to measure the chemical composition of atmospherically relevant sub-100 nm particles.

2022