Abstract
The development of an automatic gas Chromatographic method for measurement of hydrocarbons in air is described. With this method an important fraction of the hydrocarbons in the atmosphere, the C 1–C 5 hydrocarbons, can be separated and measured on a time-averaged basis. Compared with other measuring methods for hydrocarbons it is a relatively simple, direct and inexpensive method for sensitive and quick measurement. The high sensitivity of this method and the relative freedom from interference, compared for example with similar commercial apparatus, can be attributed to a number of apparently small, supplementary provisions. After a discussion of the reasons for the selection of our method and a description of the apparatus, including technical data, reference is made to analytical results intended to give an impression of the possibilities of the apparatus.
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