| 摘要 |
The specification describes a method for the continuous quantitative indication of pollutants in air, in which a reagent solution taken from a storage container is first passed through the reference cell of a photometer, is then mixed in a reaction chamber with the gas to be examined and, dependent on the concentration of the pollutant, is decolorized or colored, is then passed through the measuring cell of the photometer, and is finally collected in a collection container, an indication corresponding to the concentration of pollutant being derived from the output of the photometer, and in which the reagent solution leaving the measuring cell and containing the pollutant is once again supplied to the reaction chamber and produces a more intensive reaction. |
