Abstract
We have developped a new method to detect and measure very small amounts of CO having a sensitivity of 1 p. CO per 100 million p. air. HgO is heated in an oven reaction chambre where it reacts with CO in releasing proportional amounts of mercury vapor; the latter is then measured quantitatively in an UV electronic spectrophotometer. Reaction chamber and UV meter are assembled into a handy portable unit. The CO amount in blood is measured by decomposing a sample of blood in a volumetric flask with H2SO4 and drawing the gas mixture through the unit. The CO amount in alveolar air is measured by means of breathing bags. It is thus possible to study the influence of subtoxic doses of CO and the cancerogenic action of tobacco smoking.
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