Capillary loop with a built-in retaining frit
US7938961B2 · kind B2 · utility
3Cited by
24References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2005 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Sep 20, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2220/84
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed herein are an apparatus and method for effectuating increased chromatographic efficiency in a capillary column by employing a retaining frit disposed within an analytical capillary. By disposing the retaining frit within the analytic capillary, the void volume is significantly minimized. The columns and methods described herein produce a simplified analytical capillary and retaining frit apparatus that provides greater chromatographic efficiency. Additionally, the column of the instant invention maintains chromatographic fidelity by reducing the transfer diameter as well as facilitating fluidic connections in situ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.