Research Physicist, Sensing and Diagnostics
Jason White, Ph.D., utilizes mass spectrometry techniques for analysis of gas-, liquid- and solid-phase systems. Trained in laser spectrometry, White now uses his specialty in laser techniques in combination with time-of-flight mass spectrometry (TOF-MS).
Notable research includes:
- Utilization of various ionization methods to investigate, with sub-ppb detection, gas phase species in complicated air samples using electron-impact ionization (EI), single photon ionization (SPI) fixed-wavelength resonance enhanced multi-photonionization (REMPI) and gas chromatography mass spectrometry (GC-MS).
- The study of pyrolysis of ablator materials (similar to those found on the now-defunct space shuttle program) using thermogravimetric analysis (TGA-MS).
- Investigations related to the detection of explosive related compounds (ERCs) on metal surfaces with laser desorption techniques.
- The development of a novel liquid introduction system for detection of organic species in aqueous solutions
White started a program of breath sampling in collaboration with the Cleveland Clinic targeting biomarkers for early detection of lung cancer. In another program, he is studying biomarkers from lung tissue subjected to chlorine exposure. His future programs will focus on the improvement of breath sampling and detection, exploration of plasma diagnostics with mass spectrometry, and the development of a novel photoionization source for mass spectrometry using hollow cathode devices.
White received his B.S. in chemistry with a minor in physics from California State University, Fresno, and was awarded a Ph.D. in physical chemistry from the University of California, Santa Barbara. His postdoctoral work was completed at the University of California, Santa Barbara and at SRI. Prior to joining SRI, White briefly served as a visiting scientist at the Dalian Institute of Chemical Physics, China.
White has published seven scientific papers, with two more in preparation. His is a member of the American Chemical Society (ACS) and American Vacuum Society (AVS).