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Gas & Air Sampling

Sampling bags are widely used as a handy sampling method for automobile interior materials/emissions, work environments, building materials and textiles. Sampling bag method is an ideal method for the above mentioned applications as the sample gas can be directly injected to the gas chromatograph and convenient to collect samples using adsorbent products to enrich/concentrate the target compounds. However, the composition of the target compounds can be changed depending on the materials of the sampling bags, which is caused by the adsorption or permeation of the target compounds to the materials of the sampling bag. In addition, background peaks derived from sampling bag materials can interfere the target compounds’ peaks during the analysis. Therefore it is necessary to select optimal sampling bags depending on applications/methods.

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