Evolved Gas Analyzer Correction Method
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Solution Overview
Problem
Conventional evolved gas analysis methods require complex operations and professional knowledge to correct detection sensitivity differences and day-to-day variations in mass spectrometry devices, leading to reduced work efficiency and inaccurate quantification of gas components.
Innovation Solution
A method for correcting evolved gas analyzers using a reference sample to adjust the mass spectrum position and calculate sensitivity and heating correction factors, allowing for precise quantification of gas components by correcting detection sensitivity and heating rate variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional mass spectrometry is used for high sensitivity detection, then detection accuracy is improved, but operation complexity increases due to required sensitivity adjustment and correction
Solution Approach 1:
The system automatically performs sensitivity correction and mass spectrum position correction by comparing reference sample data with measurement sample data. The correction unit autonomously calculates correction factors and adjusts detection parameters without requiring manual intervention, making the high-precision mass spectrometry system self-correcting and easy to operate.
Solution Approach 2:
The system uses reference sample measurements to generate correction factors that are fed back to adjust subsequent measurements. The correction unit continuously compares detected mass spectra with reference data and applies real-time corrections, creating a closed-loop feedback system that maintains high accuracy while simplifying operation.
2Measurement precision
If manual correction operations are performed according to instruction manual, then detection sensitivity can be adjusted, but work efficiency is reduced due to complicated operations requiring professional knowledge
Solution Approach 1:
The correction unit automatically performs all correction operations that previously required manual intervention. The system self-calibrates by comparing reference sample data with measurement data, eliminating the need for operators to perform complex manual adjustments and thereby significantly improving work efficiency while maintaining measurement precision.
Solution Approach 2:
The correction unit acts as an intermediary between the mass spectrometer and the operator, automatically handling the complex correction calculations and adjustments. This intermediary component translates raw detection data into corrected results without requiring the operator to understand or perform the intermediate correction steps.
3Ease of operation
If general correction methods are applied, then basic sensitivity adjustment is achieved, but additional correction is required for each measurement target
Solution Approach 1:
The correction unit is designed to handle multiple measurement targets universally. By storing reference data for various substances and automatically selecting appropriate reference samples, the system provides both general correction capability and measurement target-specific optimization through a single unified correction mechanism.
Solution Approach 2:
The system dynamically adjusts correction parameters based on the measurement target. By changing the reference sample selection and correction factors according to the specific analyte being measured, the system adapts its correction approach to optimize performance for each different measurement target while maintaining ease of operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method enables high-accuracy and reproducible quantification of gas components by correcting detection sensitivity and heating rate variations, simplifying operations and eliminating the need for professional knowledge.
Implementation Method 1
an ion source generating ions by ionizing the gas component evolved by the heating unit
Data Source
AI summary
Disclosed herein is a method for correcting an evolved gas analyzer and the evolved gas analyzer. The method includes: correcting a mass spectrum position to be located at a reference spectrum position, the mass spectrum position corresponding to a mass-to-charge ratio m/z of a mass spectrum of a gas component of a reference sample; calculating a sensitivity correction factor Cs=Ss/S by using an area S and a reference area Ss of a chromatogram, the sensitivity correction factor being used to measure an area of a chromatogram of the gas component of a test sample; and calculating a heating correction factor H=t/ts by using a time t and a reference time is indicating a maximum peak of the chromatogram about the reference sample, the heating correction factor being used to correct a heating rate of the test sample when measuring the gas component of the test sample.