Evaporative light scattering detector
US7561268B2 · kind B2 · utility
1Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2004 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | May 4, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/847
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved evaporative light scattering detector apparatus for volatile samples is provided. Conventionally incomplete evaporation of the mobile phase (solvent) cannot be achieved for volatile samples as solvent cannot be fully removed at low temperature because the vapor becomes saturated. At higher temperatures the samples evaporate without forming an aerosol. By adding a dry evaporator gas to the sample before entering a drift tube avoids saturation of the vapor and permits complete evaporation of the solvent at low temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.