The manufacturer of the Tekmar 3000 Purge And Trap Concentrator With Handheld Controller is Tekmar. The Tekmar 3000 Purge and Trap Concentrator is a laboratory instrument used to concentrate and purify volatile organic compounds (VOCs) from aqueous samples. The instrument uses thermal desorption and adsorption technology to separate VOCs from water and other non-volatile compounds. The purified VOCs are then concentrated and transferred to a mass spectrometer for analysis. The Tekmar 3000 is a versatile instrument that can be used for a wide range of applications, including environmental monitoring, food and beverage analysis, and pharmaceutical research.