Atmospheric Analysis Using a Micro Carbon Sampler

摘要

A sampling device for atmospheric analysis is described, and its use compared with the use of evacuated flasks. Carbon adsorbent is held on a Curie point pyrolysis wire, and desorption prior to gas chromatographic analysis is brought about by heating the wire to its Curie point. The analysis of factory atmospheres is described and the results compared with identical samples taken in evacuated flasks. Organic compounds present in concentrations from 1 to 100 ppm can be analysed using this device, making it applicable to the monitoring of atmospheres for compounds at and below their threshold limit values.