Determination of anaesthetic agent concentration by refractometry.
basic_science · Level V
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Abstract
Reference refractivity values have been derived for the anaesthetic agents halothane, isoflurane, enflurane, sevoflurane and desflurane which are traceable to national measurement standards. A simple method and equation have been derived for the application of these data to the measurement of agent concentration by refractometry. The main instrumental sources of uncertainty associated with this method are discussed and their respective contributions quantified. Agent concentration can be measured routinely at the +/- 1% level of uncertainty using this approach.
Medical subject headings
- Anesthetics, Inhalation
- Methyl Ethers