Journal of Chromatography A 2012 DOI: 10.1016/j.chroma.2011.12.066 View full text
Janice Susaya, Ki-Hyun Kim, Jinwoo Cho, David Parker

Abstract: In this study, the performance of permeation tube (PT) devices for the generation of VOC calibration gas was examined by successively generating BTX gas at five temperatures (30, 50, 70, 80, and 100 °C) and two flow rates (400 and 800 mL min⁻¹). A distinct relationship was observed between temperatures and permeation rates (PR) (or generated BTX concentrations). We examined the reliability of the manufacturer's PR formula when operating at chamber temperatures different from the manufacturer reference temperat…

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