Patent ID: 8287811
Filing Date: 2012-10-16
Classification: G01N

Abstract:
1. A method for determining the presence of a target analyte comprising: providing a passive sampling device, providing a passive sampling device reader, using said passive sampling device reader to determine a pre-exposure value for said passive sampling device prior to exposure of said passive sampling device to said target analyte by contacting said passive sampling device with UV light thereby generating a fluorescent emission from said AFP compound and from said reference standard measuring the pre-exposure fluorescent emissions for said AFP compound and said reference standard; exposing said passive sampling device to said target analyte by placing said passive sampling device in an area to be tested for said target analyte for a period of time thereby exposing said passive sampling device to the surrounding environment; collecting said passive sampling device and; and, using said passive sampling device reader to determine the capture and retention of said analyte by said AFP compound by contacting said passive sampling device with UV light thereby generating a post-exposure fluorescent emission from said AFP compound and from said reference standard and comparing said post-exposure fluorescent emissions to said pre-exposure fluorescent emissions for said passive sampling device.