Software for the display of chromatographic separation data

• US 6,834,240 B2
• Filed: 05/22/2003
• Issued: 12/21/2004
• Est. Priority Date: 12/30/1997
• Status: Expired due to Term

• Current Assignee: Caliper Life Sciences Incorporated (Revvity, Inc.)
• Original Assignee: Caliper Holdings Incorporated
• Inventors: Gallagher, Steven J.
• Primary Examiner(s): SHAH, KAMINI S
• Application Number:
  US10/443,657
• Publication Number:
  US 20040034513A1
• Time in Patent Office: 579 Days
• Field of Search: 702/21, 702/22, 702/32, 250/461.02, 536/25.41
• US Class Current: 702/22
• CPC Class Codes: G01N 2030/625 by measuring reference material, e.g. carrier without sample
• CPC Class Codes: G01N 27/44717 Arrangements for investigating the separated zones, e.g. localising zones
• CPC Class Codes: G01N 30/86 Signal analysis
• CPC Class Codes: G01N 30/8651 Recording, data aquisition, archiving and storage

Abstract

Techniques for displaying chromatographic data using a graphical user interface are provided. Chromatographic separation data that is a series of measurements for a sample at a scanning location over time can be displayed on a display device in a series of bands. Additionally, the series of bands for multiple samples can be aligned on the display device.

Claims

1. A method of analyzing data from a chromatographic separation process, the method comprising:

subjecting a first sample comprising constituents having known characteristics to the chromatographic separation process;

receiving a series of measurements indicating presence of the constituents having known characteristics at a scanning location over time;

subjecting a second sample to the chromatographic separation process;

receiving a series of measurements indicating presence of constituents in the second sample at a scanning location over time; and

normalizing the series of measurements from the second sample using the series of measurements from the first sample.

2. The method of claim 1, further comprising the steps of displaying the series of measurements for the first sample as a series of bands;

and displaying the series of measurements from the second sample as a series of bands.

3. The method of claim 1, wherein the known characteristics of the constituents of the first sample are the sizes of the constituents.

4. The method of claim 3, wherein the constituents are nucleic acid fragments, and the constituents having known sizes are nucleic acid fragments having known numbers of base pairs.

5. The method of claim 3, wherein the constituents having known size are molecules having known molecular weights.

6. The method of claim 5, wherein the constituents having known molecular weights are proteins.

7. The method of claim 1, wherein the separation process is capillary electrophoresis.

8. The method of claim 1, wherein the separation process is HPLC.

9. The method of claim 1, wherein the separation process is FPLC.

10. The method of claim 4, wherein the second sample comprises nucleic acid fragments.

11. The method of claim 10, wherein the nucleic acid fragments are DNA fragments.

12. The method of claim 10, wherein the nucleic acid fragments are RNA fragments.

13. The method of claim 10, further comprising the step of determining the number of base pairs in one or more of the nucleic fragments in the second sample by comparing the measurements from the second sample to the measurements from the first sample.

14. The method of claim 1, wherein the first and second samples comprise proteins.

15. The method of claim 1, wherein normalizing step comprises comparing the migration time of one or more markers in the second sample with the migration time of the same markers in the first sample.

16. The method of claim 15, wherein the measurements indicating the presence of the markers in the second sample can be distinguished from the measurements indicating the presence of other constituents in the second sample by having the markers fluoresce at a different wavelength than the other constituents.

17. A computer system, comprising:

a processor;

a computer readable medium coupled to the processor that stores a computer program that analyzes data from a chromatographic separation process, the computer program comprising;

computer code that subjects a first sample comprising constituents having known characteristics to the chromatographic separation process;

computer code that receives a series of measurements indicating presence of the constituents having known characteristics at a scanning location over time;

computer code that subjects a second sample to the chromatographic separation process;

computer code that receives a series of measurements indicating presence of constituents in the second sample at a scanning location over time; and

computer code that normalizes the series of measurements from the second sample using the series of measurements from the first sample.

18. The computer system of claim 17, wherein the computer readable medium is selected from the group consisting of CD-ROM, floppy disk, tape, flash memory, system memory, hard drive, and data signal embodied on a carrier wave.

19. A computer program product that analyzes data from a chromatographic separation process, comprising:

computer code that subjects a first sample comprising constituents having known characteristics to the chromatographic separation process;

computer code that receives a series of measurements indicating presence of the constituents having known characteristics at a scanning location over time;

computer code that subjects a second sample to the chromatographic separation process;

computer code that receives a series of measurements indicating presence of constituents in the second sample at a scanning location over time;

computer code that normalizes the series of measurements from the second sample using the series of measurements from the first sample; and

a computer readable medium that stores the computer codes.

20. The computer program product of claim 19, wherein the computer readable medium is selected from the group consisting of CD-ROM, floppy disk, tape, flash memory, system memory, hard drive, and data signal embodied on a carrier wave.