Data processor for use in chromatographic analysis

• US 20060167661A1
• Filed: 01/23/2006
• Published: 07/27/2006
• Est. Priority Date: 01/24/2005
• Status: Active Grant

• Current Assignee: Tosoh Corporation
• Original Assignee: Tosoh Corporation
• Inventors: Uematsu, Genichi, Fukuya, Shunji
• Granted Patent: US 7,246,013 B2
• Time in Patent Office: Days
• US Class Current: 702/185
• 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

The present invention provides a data processor that not only makes it possible to analyze chromatograms in detail but can also collect analysis-associated information necessary for verification of data validity throughout the entire analysis process, even in cases where many samples are successively injected into a chromatography apparatus over a long period of time. The data processor comprises: a first data collecting section which, for each sample injection, collects and records a detector output at every data sampling pitch 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 pitch T2 over a period from the start to the end of the chromatographic analysis, wherein the data sampling pitch T1 is shorter than the data sampling pitch T2. The second data collecting section further collects and records analysis history and/or optional comments; this is effective in verifying the validity of analysis results.

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 pitch 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 pitch T2 over a period from the start to the end of the chromatographic analysis, wherein

the data sampling pitch T1 is shorter than the data sampling pitch 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 that have been recorded by the data processor, a monitor output indicating an analysis-associated condition, analysis history, and optional comments.