Devices and methods for detecting an explosive substance
US10024834B2 · kind B2 · utility
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10References
27Claims
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Key dates
| Filing date | Apr 20, 2017 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Apr 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/7759
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wipe for detecting the presence of an explosive substance is composed of an absorbent or adsorbent substrate and a chemical detection solution impregnated within the substrate. In one embodiment the chemical detection solution includes a combination of reagents operable, when contacted with a particular explosive substance to undergo a chemical reaction or a series of chemical reactions to produce a compound having a visible color. In another embodiment, the chemical detection solution includes a redox color indicating agent that is operable to exhibit a color change upon reacting with the explosive substance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.