Our friends at Interscan have just posted a lengthy (ca. 1100 words), but informative technical brief on the pitfalls of using gas chromatography to monitor EtO in hospital settings.
The article, typical of the Knowledge Base content the company offers on its website, is pretty much non-commercial, while explaining key concepts in gas detection. Included in the piece is a detailed history of EtO exposure regulations, dating from 1968 to the present.
Give it a spin.