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Updated: May 13, 2026

Quantitative Detection of Trace Explosive Vapors by Programmed Temperature Desorption Gas Chromatography-Electron Capture Detector
Published on: July 25, 2014
A dynamic calibration technique for temperature programmed desorption spectroscopy
K E Hurst1, M J Heben, J L Blackburn
1National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80403, USA. katherine.hurst@nrel.gov
Abstract:
A novel, rapid and accurate calibration procedure as a means for quantitative gas desorption measurement by temperature programmed desorption (TPD) spectroscopy is presented. Quantitative measurement beyond the linear regime of the instrument is achieved by associating an instantaneous calibrated molar flow rate of gas to the detector response. This technique is based on fundamental methods, and is independently verified by comparison to the hydrogen desorption capacity of a known standard metal hydride with known stoichiometry. The TPD calibration procedure described here may be used for any pure gas, and the accuracy is demonstrated for the specific case of hydrogen.
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