Capillary flowcell for multiple wavelength detection
US5434664A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1994 |
| Grant date | Jul 18, 1995 |
| Priority date | — |
| Expiry date | Apr 15, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0639
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A capillary flowcell of this invention comprises a holding means including an optical axis, the optical axis being defined by, in sequential order, (a) a first (entrance) aperture, (b) a first lens, (c) a capillary tube having its long axis centered across the optical axis, and (d) a second lens. The first lens focuses electromagnetic radiation from the entrance aperture passes through the inner diameter of the capillary tube, thus maximizing the signal generated by the analyte within the capillary tube. The second lens focuses electromagnetic radiation which has passed through the capillary tube. Methods and apparatus pertaining to the flowcell are given.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.