Patent ID: 7662630
Filing Date: 2010-02-16
Classification: G01N,Y10T

Abstract:
1. A method of transferring an analyte of a sample to an analytical instrument, the method comprising: introducing a first quantity of a standard material into a first vessel containing an adsorbent material; introducing a quantity of the sample into the first vessel; transferring the analyte of the sample and a compound of the standard material to the analytical instrument; selecting a standard having chromatographic detection characteristics indicative of the sample to be analyzed; introducing the standard into a vessel placed at a location of thermal desorption; transporting the vessel to a site remote from and separate from the location for collecting a sample, wherein the sample is mixed with the standard; transporting the vessel to the location; introducing the sample and standard into a chromatograph column; detecting the sample and standard as both exit the chromatograph column; and determining an integrity of the sample collection by comparing the detections of the sample with the detections of the standard.