NITROGEN ANALYZER ADAPTATION FOR USE IN PRESENCE OF HALOGENATED ANESTHETICS
NITROGEN ANALYZER ADAPTATION FOR USE IN PRESENCE OF HALOGENATED ANESTHETICS
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DOI：
10.1097/00000542-197512000-00014
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发表时间：
1975-01-01
期刊：
影响因子：
8.8
通讯作者：
CRAIG, DB
中科院分区：
文献类型：
--
作者：
GILMOUR, IJ;HOLLAND, R;CRAIG, DB
在氮分析仪针阀和含氟烷、甲氧氟烷、恩氟烷或异氟烷的气体混合物之间插入活性炭，消除了这些试剂的干扰作用，但增加了采样延迟。在针阀和分析仪之间的取样管线中放置一个碳填充的Swinney适配器也消除了干扰。线性响应（范围0至80% N2）和采样延迟（40毫秒）不变。90%下降时间（阶跃变化80%到0%N2）从35毫秒增加到100毫秒。这种调整允许在全身麻醉期间快速分析氮浓度。
Interposition of activated carbon between a nitrogen analyzer needle valve and gas mixtures containing halothane, methoxyflurane, enflurane, or isoflurane eliminated the interfering effects of these agents, but added sampling delays. Placement of a carbon-filled Swinney adaptor in the sampling line between the needle valve and analyzer also eliminated the interference. Linearity of response (range 0 to 80 per cent N2) and sampling delay (40 msec) were unchanged. The 90 per cent fall time (step change 80 to 0 per cent N2) increased from 35 to 100 msec. This adaptation allows rapid analysis of nitrogen concentrations during general anesthesia.