Trace vapor generator for detecting explosives, narcotics

Science Daily  August 18, 2020
The Trace Vapor Generator for Explosives and Narcotics (TV-Gen) sampling device designed by a team of researchers in the US (Naval Research Laboratory, research institution, National Research Council) can be used with a broad range of analytes, detection systems, materials, and sensors. It can switch easily between the clean and analyte vapor streams. The TV-Gen system utilizes nebulization of aqueous analyte solutions and a control box that provides dedicated computer control with logging capabilities. Resultant vapor streams are stable over several hours, with the vapor concentration controlled by a combination of aqueous analyte solution concentration, liquid flow rate through the nebulizer, and volume flow rate of air through the TV-Gen manifold…read more. Open Access TECHNICAL ARTICLE