Patent ID: 8192685
Filing Date: 2012-06-05
Classification: G01N

Abstract:
1. An interactive interrogator system for detecting a target substance, comprising: a concentration cell; a first sensor tuned to detect the target substance in a range of 1 ppm to 1 ppt, but that may provide a false alarm for an interferent, wherein the first sensor comprises at least one nanotube and the first sensor is situated in the concentration cell; a computerized interrogator that is interactive with a human user, wherein when the first sensor has returned a positive indication for presence of a target substance, the interrogator performs steps comprising: a library in a computer-readable form of at least the target substance and possible interferents, wherein the library is contained in or receivable by the interrogator; a second sensor which is an ambiguity resolver, wherein the second sensor is dependent upon a different physical parameter of an analyte than the first sensor; a computerized analyzer that receives from the interrogator, in computer readable form, one or both of GPS coordinates of the first sensor at a time an atmospheric sample is introduced into the concentration cell, and environment information relating to presence of possible chemical interferent sources.