Single-Tube Absorption Solution Preparation for Precise Quantitative Analysis
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Solution Overview
Problem
The existing methods for quantitative analysis using ion chromatography require time and effort to accurately measure and control the volume of absorbing solutions, and the device structure is complicated due to the need for switching mechanisms between calibration curve and analyte solution introduction paths.
Innovation Solution
A method and device that prepare analyte and calibration curve solutions in a single absorption tube using a liquid level sensor and diluent injection, allowing automatic volume adjustment and elimination of manual volume measurement, enabling precise and rapid quantitative analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual volume measurement and control of absorbing solution is performed, then measurement precision is improved, but loss of time increases and ease of operation deteriorates
Solution Approach 1:
The absorption tube is equipped with a liquid level sensor that automatically detects when the absorbing solution reaches the predetermined volume mark, eliminating the need for manual volume measurement and control. The system self-regulates the volume by using the sensor feedback to stop the solution filling process automatically.
Solution Approach 2:
The manual mechanical process of volume measurement and control is replaced by an automated system using a liquid level sensor that electrically detects the solution level and triggers automatic stopping of the filling process, substituting human operation with an automated sensing and control mechanism.
2Reliability
If separate introduction paths for calibration curve solutions and absorbing solution are used, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges the introduction paths for calibration curve solutions and absorbing solutions into a single common introduction path. The absorption tube can sequentially receive different solutions through the same inlet, eliminating the need for separate paths and their associated switching mechanisms, thereby simplifying the device structure while maintaining reliable solution introduction.
Solution Approach 2:
The single introduction path of the absorption tube is designed to be universal, capable of introducing both calibration curve solutions and absorbing solutions through the same route. This multi-functional design eliminates the need for dedicated separate paths for each solution type, reducing device complexity while ensuring reliable 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
Enables highly precise and automated quantitative analysis by eliminating the need for manual volume measurement and simplifying the device structure, allowing for rapid and accurate determination of unknown component concentrations.
Implementation Method 1
an absorption tube containing an absorbing solution that absorbs the sample gas
Implementation Method 2
a sample heating device that thermally decomposes a sample to produce a sample gas
Data Source
AI summary
A method is provided for preparing solutions for quantitative analysis that are analyte solutions to be introduced into an apparatus that detects an unknown component contained in a sample in a quantitative analysis of the unknown component using a calibration curve. The method includes: preparing an analyte solution of a sample containing the unknown component by pouring an absorbing solution that absorbs a gas into an absorption tube and allowing the absorbing solution to absorb a sample gas produced by thermal decomposition of the sample; and preparing a calibration curve solution by pouring a known concentration solution into the same absorption tube as above.