US4832488A
Expired / Lapsed
US
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Method for correction of calibration curve in dry analytical process
Assignee: Fujifilm Holdings Corp
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Filing: 1987-09-01
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Granted: 1989-05-23
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Expires: 2007-09-01
Abstract
Abstract A method for correction of calibration curve in a dry analytical process for quantitative analysis of analyte in a liquid sample such as blood is disclosed. In the method, a calibration curve which has been previously determined for analysis of the analyte using a standard dry analytical element is corrected for application to a dry analytical element having deviated from the standard dry analytical element in its sensitivity to the analyte due to unintentional denaturation, variation, etc., utilizing an optical density determined on the above deviated dry analytical element which has not received spotting of a liquid sample containing the analyte.
Inventors
- 👤 Kikuo Hirai
- 👤 Fuminori Arai
- 👤 Yuzo Iwata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:25
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; Y; Y10; Y10S; Y10S436/00; Y10S436/805
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
89 words
A method for correction of a calibration curve in a dry analytical process for quantitative analysis of an analyte in a liquid sample, wherein a standard calibration curve which has been previously determined for analysis of the analyte using a standard dry analytical element is corrected for application to a dry analytical element having deviated from the standard dry analytical element in its sensitivity to the analyte, utilizing an optical density determined on the deviated dry analytical element without the application of a liquid sample containing the analyte thereon.
Claim 2
Independent Claim
89 words
A method for correction of a calibration curve in a dry analytical process for quantitative analysis of an analyte in a liquid sample, wherein a standard calibration curve which has been previously determined for analysis of the analyte using a standard dry analytical element is corrected for application to a dry analytical element having deviated from the standard dry analytical element in its sensitivity to the analyte, utilizing an optical density determined on the deviated dry analytical element without the application of a liquid sample containing the analyte thereon.
Claim 3
Dependent Claim
58 words
The method for correction of a calibration curve as claimed in claim 1, wherein the standard calibration curve is corrected for application to the dry analytical element having deviated from the standard dry analytical element in its sensitivity to the analyte, utilizing an optical density determined on the deviated dry analytical element which has been subjected to incubation.
Claim 4
Dependent Claim
64 words
The method for correction of a calibration curve as claimed in claim 1, wherein the standard calibration curve is corrected for application to the dry analytical element having deviated from the standard dry analytical element in its sensitivity to the analyte, utilizing an optical density determined on the deviated dry analytical element which has received spotting of water or a liquid containing no analyte.
Claim 5
Dependent Claim
71 words
The method for correction of a calibration curve as claimed in claim 1, wherein the standard calibration curve is corrected for application to the dry analytical element having deviated from the standard dry analytical element in its sensitivity to the analyte, utilizing an optical density determined on the deviated dry analytical element which has received spotting or water or a liquid containing no analyte and then has been subjected to incubation.
References Cited (Backward Citations)
US3907503A
Cited
US4509859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-22 | 1992-11-21 | 1993-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-22 | 1996-11-21 | 1997-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-22 | 2000-11-21 | 2001-05-23 | $7700.00 | Window Closed / Lapsed |