Using static headspace, sealed vials containing sample are gently heated to drive VOC compounds out of the sample matrix into equilibrium with the gas phase.
Using static headspace, sealed vials containing sample are gently heated to drive VOC compounds out of the sample matrix into equilibrium with the gas phase.
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sample from the depth of interest, and the subse- quent transfer of subsamples to volatile organic analysis (VOA) vials. To obtain subsurface bulk.
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This new concept provided great potential for on-site air sampling that is inexpensive, easy to use and robust [24]. In order to analyse free airborne VOCs, in
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1.5 Method 5035 can be used for most volatile organic compounds that have The vial is sealed and shipped to a laboratory or appropriate analysis site.
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