Method and apparatus for spectrometric analysis of turbid, pharmaceutical samples
US6794670B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2000 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Sep 10, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/399
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a method and an apparatus for use in performing a quantitative analysis of a turbid pharmaceutical sample, e.g. a tablet, a capsule or a similar sample forming a pharmaceutical dose. A pharmaceutical, turbid sample (24) is irradiated with an excitation beam (20) of radiation, e.g. near infrared radiation. The intensity of emitted radiation (30) from the sample (24) is detected as a function of both the wavelength of the emitted radiation and the photon propagation time through said sample (24). Optionally, the intensity of the emitted radiation (30) from the sample (24) is also detected in a spatially resolved manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.