Abstract
The use of adsorbents in adsorption tube samplers for the collection and preconcentration of volatile components in air samples requires a knowledge of a maximum safe sampling volume or breakthrough volume in order to guarantee a quantitative collection. Previously there have been several arbitrary definitions of a breakthrough volume which have had various dependencies on the component retention volume and, in some instances, on the number of theoretical plates of the adsorbent. As a result of the application samplers, a breakthrough volume is defined and explicitly expressed in terms of a required collection efficiency, the retention volume for the adsorbate/adsorbent combination, and the number of theoretical plates of the adsorbent.The specified collection efficiency is guaranteed for an adsorption tube sampler as long as the sampled volume is less than this breakthrough volume.
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