Apparatus for preconcentrating and transferring analytes from surfaces and measurement thereof using spectroscopy
US11639932B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2021 |
| Grant date | May 2, 2023 |
| Priority date | — |
| Expiry date | Oct 22, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/3595
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for capturing a target analyte in advance of performing spectroscopic analysis to determine the existence of the target analyte from a source contacted with a collection substrate. The collection substrate is fabricated of a material selected to have an affinity for the target analyte, sufficiently transparent in a spectral region of interest and capable of immobilizing the target analyte thereon in a manner that limits scattering sufficient to obscure spectral analysis. The collection substrate may be coated with a material selected to react with, bind to, or absorb the target analyte. The target analyte may be captured to the collection substrate by one or more of wiping, dabbing or swabbing a target analyte carrier with the collection substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.