Toward the personal mass spectrometer

ANYL 349

R. Graham Cooks, cooks@purdue.edu, Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN 47907-2084, Zheng Ouyang, ouyang@purdue.edu, School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, and Robert J Noll, Chemistry Department, Purdue University, 560 Oval Drive, West Lafayette, 47907-2084.
We are engaged in a program of research aimed at producing mass spectrometers suitable for use by individuals. The objective is to empower individuals with knowledge of the chemical nature of their environments. Potential applications include those associated with characterization of air, water, food, clothing, the hundreds of common consumer items, and personal health status. These objectives require an instrument capable of direct analysis of air, liquids and solids in the ambient environment without chemical work-up. We have chosen tandem mass spectrometry as the basic vehicle for this effort. This abstract reports progress in three essential components of such a consumer mass spectrometer: (1) the miniature mass spectrometer itself (ii) the desorption electrospray ionization (DESI) ion source and (iii) the sampling wand needed to allow analysis at a distance from the mass spectrometer. Data will be shown for an 4 kg mass spectrometer to which a DESI ion source is currently being fitted. Support from the ONR, Thermo Fisher and the Indiana 21st Century Fund (via Prosolia, Inc. and Griffin Analytical Technologies, Inc.) is acknowledged.