Data processor for use in chromatographic analysis

• US 7,246,013 B2
• Filed: 01/23/2006
• Issued: 07/17/2007
• Est. Priority Date: 01/24/2005
• Status: Active Grant

• Current Assignee: Tosoh Corporation
• Original Assignee: Tosoh Corporation
• Inventors: Uematsu, Genichi, Fukuya, Shunji
• Primary Examiner(s): Tsai; Carol S. W.
• Assistant Examiner(s): O MALLEY, MARY CATHERINE
• Application Number:
  US11/337,006
• Publication Number:
  US 20060167661A1
• Time in Patent Office: 540 Days
• Field of Search: None
• US Class Current: 702/32
• CPC Class Codes: G01N 2030/8804 automated systems
• CPC Class Codes: G01N 2030/8886 Analysis of industrial production processes
• CPC Class Codes: G01N 30/8651 Recording, data aquisition, archiving and storage
• CPC Class Codes: G01N 30/8675 Evaluation, i.e. decoding of the signal into analytical information for analysis of specific compounds see also G01N30/88 and subgroups of G01N33/00; chemical libraries per se C40B
• CPC Class Codes: G01N 30/88 Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86

Abstract

A data processor for analyzing chromatograms in detail and collecting analysis-associated information necessary for verification of data validity throughout an analysis process. The data processor includes a first data collecting section which collects and records a detector output at every data sampling rate T1 for each sample injection, and a second data collecting section which collects and records the detector output and a monitor output indicating an analysis-associated condition at every data sampling rate T2 over a period from the start to the end of the chromatographic analysis; the data sampling rate T1 is shorter than the data sampling rate T2.

Claims

1. A data processor for use in chromatographic analysis in which a sample is injected into a separation column and is detected by a detector, comprising:

a first data collecting section which, for each sample injection, collects and records a detector output at every data sampling rate T1; and

a second data collecting section which collects and records the detector output and a monitor output indicating an analysis-associated condition at every data sampling rate T2 over a period from the start to the end of the chromatographic analysis, wherein

the data sampling rate T1 is shorter than the data sampling rate T2.

2. A data processor as claimed in claim 1, wherein the second data collecting section further collects and records analysis history.

3. A data processor as claimed in claim 1, wherein the second data collecting section further collects and records non-rewritable optional comments together with time of writing thereof.

4. A chromatography apparatus comprising:

a data processor as claimed in claim 1; and

a chromatogram display section which displays at least one output selected from the group consisting of a detector output recorded by the data processor, a monitor output indicating an analysis-associated condition, analysis history, and optional comments.