Giordano Braden C, DeGreeff Lauryn E, Malito Michael, Hammond Mark, Katilie Christopher, Mullen Matthew, Collins Greg E, Rose-Pehrsson Susan L
Chemistry Division, U.S. Naval Research Laboratory, 4555 Overlook Ave., SW, Washington, DC 20375, USA.
Nova Research, Inc., 1900 Elkin St., Suite 230, Alexandria, Virginia 22308, USA.
Rev Sci Instrum. 2020 Aug 1;91(8):085112. doi: 10.1063/1.5142385.
The Trace Vapor Generator for Explosives and Narcotics (TV-Gen) is a portable and compact instrument designed to deliver a continuous source of trace-level vapors and vapor mixtures. It provides a tool to assist in the independent validation and verification of new materials and sensors under development for the vapor detection of explosives and narcotics. The design was conceived for use with a broad range of analytes, detection systems, materials, and sensors and to switch easily between the clean and analyte vapor streams. The TV-Gen system utilizes nebulization of aqueous analyte solutions, an oven to promote efficient transport, 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.
爆炸物和麻醉品痕量蒸汽发生器（TV-Gen）是一种便携式紧凑型仪器，旨在提供痕量水平蒸汽和蒸汽混合物的连续来源。它为协助独立验证和核查正在开发的用于爆炸物和麻醉品蒸汽检测的新材料和传感器提供了一种工具。该设计适用于多种分析物、检测系统、材料和传感器，并能在清洁蒸汽流和分析物蒸汽流之间轻松切换。TV-Gen系统利用分析物水溶液的雾化、一个促进高效传输的加热炉以及一个提供具有记录功能的专用计算机控制的控制箱。生成的蒸汽流在数小时内保持稳定，蒸汽浓度由分析物水溶液浓度、通过雾化器的液体流速以及通过TV-Gen歧管的空气体积流速共同控制。
