Liquid Chromatography Analysis for Unseparated Impurity Peaks
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Solution Overview
Problem
Chromatograms generated by analysis devices include micro peaks of impurities, requiring time-consuming and labor-intensive verification, increasing analysis and development costs.
Innovation Solution
An analysis assistance device that includes a chromatogram generator, area calculator, determiner, and outputter to identify unseparated peaks based on area percentage and resolution thresholds, providing useful information to users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual verification of impurity peaks is performed, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The system performs self-verification of impurity peaks by automatically calculating area percentages and resolution values, then automatically determining whether peaks are unseparated based on predetermined thresholds. This self-service mechanism eliminates the need for manual verification while maintaining measurement precision.
Solution Approach 2:
The patent replaces manual mechanical verification processes with automated computational algorithms that calculate area percentages, resolution values, and separation states. This substitution of mechanical manual verification with automated electronic computation reduces time loss while preserving measurement precision.
2Ease of operation
If comprehensive peak information is provided, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The system extracts and presents only the most critical peak information (area percentage, resolution value, separation state) that users need for operational decisions. By extracting only essential information rather than providing all possible data, the system maintains ease of operation while avoiding excessive device complexity.
Solution Approach 2:
The patent applies different levels of detail to different aspects of peak information. Critical parameters like area percentage and resolution are prominently displayed with specific thresholds, while less critical information is summarized. This local quality approach provides comprehensive operational guidance without overwhelming complexity.
Data Source
AI summary
An analysis assistance device includes a chromatogram generator that generates a chromatogram using measurement data obtained from an analysis device, an area calculator that calculates an area percentage of each peak included in the chromatogram, a determiner that determines a separation state of each peak included in the chromatogram, and an analysis assistance information outputter that outputs analysis assistance information to a display. The analysis assistance information outputter includes a chromatogram outputter that outputs the chromatogram generated by the chromatogram generator to the display and also outputs information to display one peak in an identified manner when the one peak has an area percentage of not less than a predetermined threshold value, and the determiner determines that the one peak is an unseparated peak.