Test-tube equilibration of volatile anaesthetic concentrations

D. C. Martin, J. K. Pruett, R. S. Aronstam

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We have measured concentrations of volatile anaesthetics after injection into test-tube assay solutions. In non-agitated tubes, aqueous anaesthetic concentrations decreased significantly throughout 40 min of incubation. Agitation (20-s vortex) of the tubes decreased the aqueous anaesthetic concentration by approximately 80% from concentrations in non-agitated tubes and resulted in more stable liquid anaesthetic concentrations over time. A decrease of less than 15% occurred between 10 and 50 min of incubation. (Br. J. Anaesth. 1993; 70: 365-367).

Original languageEnglish (US)
Pages (from-to)365-367
Number of pages3
JournalBritish Journal of Anaesthesia
Issue number3
StatePublished - Mar 1993
Externally publishedYes


  • Anaesthetics, volatile: enflurane, halothane.
  • Measurement techniques: in vitro assay

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine


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