A method for the continuous quantitative determination of an oxidizable chemical compound in an assay medium

摘要

The present invention relates to a process for the continuous quantitative determination of at least one chemical compound that can be oxidized in samples from a gaseous, liquid or solid assay medium, e.g. compressed air, wherein the reaction products of the oxidation, in particular co₂, Ch₄, So₂ and no, can be determined spectrophotometrically detectable, and where, by means of the method according to the invention, the content of hydrocarbons with a detection limit of ≦ 0,001 mg / nm³ can be measured. In addition, tc, toc and tic with the method according to the invention are detected. The method according to the invention can for online - measurement of hydrocarbons and other chemical constituents, in many areas of industry and research, for example in the compressed gas region, in particular, ultra pure gas - and respiratory gas region, chemical industry, in particular a petrochemical industry, chamber air monitoring, sewage technology, etc, are used.