Microscale collector-injector technologies for passive environmental vapor sampling and focused injection
US11782033B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2019 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Aug 12, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/128
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A microscale collector and injector device comprises a microscale passive pre-concentrator (μPP) and a microscale progressively-heated injector (μPHI). The μPP devices comprises first and second substrate portions, a first collection material, a μPP heater, and an outlet. The first substrate portion defines an array of microscale diffusion channels. The first and second substrate portions cooperate to define a first compartment in fluid communication with the diffusion channels. The first collection material is disposed within the first compartment, at least partially surrounding the outlet. The μPP heater is disposed in thermal communication with the second substrate portion. The μPHI device comprises third and fourth substrate portions, a second collection material, and a plurality of μPHI heaters. The third and fourth substrate portions cooperate to define a second compartment. The second collection material is disposed within the second compartment. The μPHI heaters are disposed in thermal communication with the second compartment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.