Gary is currently an R&D chemist in the Environmental Air Monitoring group at the Supelco division of Millipore Sigma after working for six years as a technical service chemist. As an R&D chemist, he is involved with helping develop new products and testing methodologies in air monitoring. He previously has spent over twenty years in analytical chemistry involved with the identification of micro and macro contaminations in failure analysis, deformulation, forensic, and industrial hygiene sample testing.