With mainstream capnographs, the measuring chamber in the airway adaptor can become dirty or damaged, leading to erroneous end-tidal or inspired carbon dioxide values.
If a capnograph is used, the presence of a normal shape of the capnographic curve indicates that the number displayed for end-tidal carbon dioxide is likely to represent a true end-expiratory sample.
3
为了本发明的目的,通过硫分析仪和烃分析仪分析二氧化碳中的各种杂质。
For the purposes of this invention various impurities in carbon dioxide are analyzed by a sulfur analyzer and a hydrocarbon analyzer.