A sonic analyser for anaesthetic vapours

Antibacterial action of anaesthetic vapours.

A permanent alternative is to re-site the fresh gas inflow to the back of the absorber where it has always been positioned in the past. With the elimination of the fresh gas flow error, it is found that respirometers placed at the catheter mount and in the circle give almost identical readings with spontaneous respiration. With controlled respiration there is over-reading of the circle respirom...

The antibacterial action of anaesthetic vapours.

The antibacterial action of the vapours of the volatile anaesthetic agents on E. coli has been investigated. Known numbers of organisms were exposed to various concentrations of halothane, chloroform, trichloroethylene, methoxyflurane, and diethyl ether, under controlled conditions of humidity and oxygen concentration. It was found that these agents reduced the survival of the organisms to an e...

Removal and recovery of halothane and methoxyflurane from waste anaesthetic vapours.

ET~_En Va~'OUR has an irritant quality and is considered by many people to have an unpleasant odour. This constituted a problem for pioneers of anaesthesia, and among the various ways in which induction was :modified was the addition of odoriferous substances to the ether vapour. Numerous agents were employed for this purpose including mint, oil of wintergreen, camphor, musk, and oil of cloves?...

A liquid crystalline chirality balance for vapours

Chiral discrimination of vapours plays an important role in olfactory perception of biological systems and its realization by artificial sensors has been an intriguing challenge. Here, we report a simple method that tangibly visualizes the chirality of a diverse variety of molecules dissolved from vapours with high sensitivity, by making use of a structural change in a periodic microstructure o...

A touch of the vapours...