G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 1/00 (2006.01) E21B 49/00 (2006.01) G01N 1/22 (2006.01) G01N 21/25 (2006.01) G01N 33/22 (2006.01) G01N 33/24 (2006.01)
Patent
CA 2043825
ABSTRACT OF THE DISCLOSURE A method of detecting the presence of substances, such as explosives, environmental pollutants, hydrocarbons and organic materials, in a sample of ground material comprised of soil, a micro layer of soil, liquid, or a combination thereof is presented. The method involves the collecting of a discrete sample of such ground material from an area that may contain said substances and depositing the sample on a teflon filter or other collection medium. The filter is then placed in a sample holding unit adjacent an inlet to an ion mobility spectrometer (IMS) or other suitable instrument for detecting the substances. The sample holding unit is then heated, typically to a temperature of about 180 degrees C or higher, to vaporize matter from the collected sample atop the filter. The vaporized matter is then entrained in a flow of gas which passes said matter into the IMS, thereby to analyze the vaporized matter and determine the presence of said substances.
Danylewych-May Ludmila L.
Davies John Henry
Barringer Research Limited
Bereskin & Parr
Danylewych-May Ludmila L.
Davies John Henry
LandOfFree
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