US4476026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus useful in identifying a solute
Assignee: Applied Biosystems Inc
•
Filing: 1983-03-21
•
Granted: 1984-10-09
•
Expires: 2003-03-21
Abstract
Abstract An apparatus useful in identifying a solute includes a microbore separation column having unusually large particle packing making up the bed thereof. In addition, the microbore column is excessively long compared to conventional columns. Preferably, the column is thermally stabilized.
Inventors
- 👤 Elena Katz
- 👤 Kenneth L. Ogan
- 👤 Raymond P. W. Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:18
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/50; G01N30/52; G01N2030/524
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A method for enhancing the identification of a solute; said method comprising the steps of: chromatographically separating a mixture including said solute under conditions where the resistance-to-mass transfer dispersion process is the dominant factor in the total column band dispersion; determining the dispersion of the resultant chromatographic peak; and determining the molecular weight of said solute from a first order relationship between said dispersion and said molecular weight whereby solute identification is enhanced.
Claim 2
Independent Claim
73 words
A method for enhancing the identification of a solute; said method comprising the steps of: chromatographically separating a mixture including said solute under conditions where the resistance-to-mass transfer dispersion process is the dominant factor in the total column band dispersion; determining the dispersion of the resultant chromatographic peak; and determining the molecular weight of said solute from a first order relationship between said dispersion and said molecular weight whereby solute identification is enhanced.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |