MODIFICATION OF THE MGA 200 MASS-SPECTROMETER TO ENABLE MEASUREMENT OF ANESTHETIC GAS-MIXTURES

被引：23

作者：

DAVIS, WOM

SPENCE, AA

机构：

[1] University Department of Anaesthesia, Western Infirmary

来源：

BRITISH JOURNAL OF ANAESTHESIA | 1979年 / 51卷 / 10期

关键词：

D O I：

10.1093/bja/51.10.987

中图分类号：

R614 [麻醉学];

学科分类号：

100217 ;

摘要：

The measurement of anaesthetic gas mixtures with a mass spectrometer is complicated by the overlap of fragmentation products of the anaesthetics with the normal respiratory gas. For the MGA 200 quadrupole instrument the problem has been overcome by incorporating simple circuitry which, for an appropriate mass number, sums the concentrations of the unwanted fragments and subtracts them from the total output for the particular channel; this provides an accurate and stable system (within±1% f.s.d.) over at least 24 h. © 1979 Macmillan Journals Ltd.

引用

页码：987 / 988

页数：2