Apparatus and method for preconcentrating and transferring analytes from surfaces and measurement thereof using spectroscopy
US10031136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2015 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Jan 12, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/3595
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method 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 method optionally includes the step of transferring the captured target analyte to a second substrate, which may be an optical substrate. 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.