Abstract
In order to determine the amount of carbon monoxide in cigarette smoke, examination was made on how to dilute cigarette smoke with air to 50-fold dilution, and the amount of carbon monoxide in the diluted smoke was determined by the test tube detector of Kitagawa's method. This method may be the simplest and most practical because the values obtained were very close to that of Mumpower and others who had employed gas chromatography to estimate carbon monoxide in cigarette smoke. This apparatus is compact and portable, and the whole determination requires only five minutes. Since the moisture content of cigarettes had little or no effect on evalution of carbon monoxide, as was proved by Mumpower, examination was made on relationship between carbon monoxide content and some other factors.
