Title: Collection, release, and detection of analytes with polymer composite sampling materials

Abstract

A unique fiber core sampler composition, related systems, and techniques for designing, making, and using the same are described. The sampler is used to interface with existing field instrumentation, such as Ion Mobility Spectrometer (IMS) equipment. Desired sampler characteristics include its: stiffness/flexibility; thermal mass and conductivity; specific heat; trace substance collection/release dependability, sensitivity and repeatability; thickness; reusability; durability; stability for thermal cleaning; and the like. In one form the sampler has a glass fiber core with a thickness less than 0.3 millimeter that is coated with a polymer including one or more of: polymeric organofluorine, polyimide, polyamide, PolyBenzImidazole (PBI), PolyDiMethylSiloxane (PDMS), sulfonated tetrafluoroethylene (PFSA) and Poly(2,6-diphenyl-p-phenylene Oxide) (PPPO). Multiple polymer coatings with the same or different polymer types may be included, core/substrate surface functionalization utilized, and/or the core/substrate may be at partially filled with thermally conductive particles.

Inventors:

Addleman, Raymond S.; Li, Xiaohong Shari; Chouyyok, Wilaiwan; Atkinson, David

Issue Date:

2020-01-14

Research Org.:

Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1632436

Patent Number(s):

10533968

Application Number:

16/256,980

Assignee:

Battelle Memorial Institute (Richland, WA)

Patent Classifications (CPCs):

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G01N1/02 - Devices for withdrawing samples
G01N1/405 - {by adsorption or absorption}
G01N2001/024 - {passengers or luggage}
G01N2001/027 - {field kits / quick test kits}
G01N2001/028 - {Sampling from a surface, swabbing, vaporising}
G01N2001/4061 - {Solvent extraction}
G01N27/622 - {separating and identifying ionized molecules based on their mobility in a carrier gas, i.e. ion mobility spectrometry

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DOE Contract Number:  

AC05-76RL01830

Resource Type:

Patent

Resource Relation:

Patent File Date: 01/24/2019

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY