METHOD AND DEVICE FOR ANALYTE SAMPLING AND ANALYTE CONCENTRATION DETERMINATION FROM EXHALED BREATH

摘要

A method for collecting an analyte, such a volatile compound or biomarker sample from exhaled breath, comprising the steps of providing a sampling device comprising an adsorbent surface; and contacting exhaled breath from the subject to be sampled with the adsorbent surface whereby the analyte to be sampled binds to the adsorbent surface; characterized in that the sampling device comprises a capillary with the adsorbent surface coated on the inner surface thereof. A sampling device for collecting an analyte sample from exhaled breath comprising a capillary with an adsorbent surface coated on the inner surface thereof, characterized in that the adsorbent surface comprises an adsorbent selected from phenyl methyl silicone, polyethylene glycol and a sol-gel of silica.