Critical role of a pre-purge setup in the thermal desorption analysis of volatile organic compounds by gas chromatography with mass spectrometry

• Published in: Journal of separation science Vol. 38; no. 14; pp. 2455 - 2462
• Main Authors: Kim, Yong-Hyun, Kim, Ki-Hyun
• Format: Journal Article
• Language: English
• Published: Germany Blackwell Publishing Ltd 01.07.2015; Wiley Subscription Services, Inc
• Subjects: air; Calibration; Chromatography; Desorption; Gas chromatography; gas chromatography-mass spectrometry; Mass spectrometry; Methanol; Methyl alcohol; Organic compounds; Pre-purge; Solvent effect; Solvent effects; solvents; Sorbent tubes; Sorbents; Tubes; VOCs; Volatile organic compounds; Pre-purge; Gas chromatography; Sorbent tubes; Methanol; Solvent effects

In general, volatile organic compounds in ambient air are quantified by following a well‐defined standard calibration procedure using a gas‐/liquid‐phase standard. If the liquid standard is analyzed by a thermal desorption, the solvent effect is unavoidable through the alteration of breakthrough pro...