Drying method and apparatus for infrared analysis of aqueous samples
US5545376A · kind A · utility
3Cited by
11References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 1, 1990 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Aug 1, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/4027
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In the system for analyzing aqueous samples, the aqueous sample is deposited upon a sheet of filter paper which is held in a filter holder by clamping the peripheral edges of the filter paper between male and female threaded members of the filter holder. The filter paper with the sample is dried by a heated air stream directed perpendicularly toward the paper so that it flows around and through the paper. After the sample has been dried, it is analyzed by near infrared spectral analysis to measure the constituents of the dried sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.