Decentralized Sample Vessel for Contamination-Free Thermo-Chemical Preparation
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Solution Overview
Problem
Current thermo-chemical sample preparation methods for chromatographic analysis are expensive and require direct coupling with gas chromatography, leading to rapid rinsing out of substances and contamination risks, while also being inefficient in automated handling.
Innovation Solution
A sample vessel with a decentralized vial-based interface that allows for rapid heating and independent thermo-chemical reactions, enabling pyrolysis or thermolysis within the vessel without direct coupling to the chromatography system, allowing for automated handling and contamination prevention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct coupling with gas chromatography is used for thermo-chemical sample preparation, then analysis can be performed, but rapid rinsing out of substances and contamination risks occur
Solution Approach 1:
The system is divided into separate functional modules: a sample vessel for thermo-chemical preparation and a gas chromatograph for analysis. The sample vessel can be removed and replaced independently, allowing the preparation process to be segmented from the analysis process, thereby preventing contamination while maintaining functionality.
Solution Approach 2:
A transfer line or interface mechanism acts as an intermediary between the sample vessel and the gas chromatograph. This intermediary component allows the transfer of gaseous samples without direct coupling, reducing contamination risks and enabling independent handling of each component.
2Productivity
If automated handling is implemented for sample preparation, then sample throughput increases, but equipment cost and complexity increase
Solution Approach 1:
The sample vessel is designed as a universal container that can be handled by standard automated sampling systems. Its standardized interface and morphology allow it to be manipulated by existing robotic arms and transport mechanisms, enabling automation without requiring specialized expensive equipment.
Solution Approach 2:
The sample vessel is designed to be self-contained with integrated heating and sealing features, allowing it to perform its own preparation functions. This reduces the need for complex external automation equipment while still enabling automated handling through its standardized interface.
3Productivity
If heating device is integrated into sample vessel, then thermal treatment efficiency improves, but device complexity increases
Solution Approach 1:
The heating device is merged with the sample vessel structure, combining the containment and thermal treatment functions into a single integrated unit. This merging improves thermal treatment efficiency by eliminating heat loss at interfaces while the modular design keeps the integration complexity manageable.
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 improves the automated handling of samples during thermo-chemical preparation, prevents contamination, and allows for efficient thermal treatment and dissolution of products, enhancing reproducibility and sample preparation efficiency for chromatographic analysis.
Implementation Method 1
the test substance is subjected to a thermo-chemical reaction, in particular pyrolysis
Implementation Method 2
the test substance is subjected to a thermo-chemical reaction
Implementation Method 3
A heating section for indirect heat transfer is installed along the filling with the test substance
Data Source
Figure 1a~2b
Figure 3
Figure 4A~4B
AI summary
The invention relates to a method for preparing a sample for chromatographic separation processes, in which a sample vessel (1) is partially filled with a substance to be examined and is closed, the substance to be examined is subjected to a thermo-chemical reaction in which at least one sample component is converted into another substance, and in which by means of a removing device samples are removed from the sample vessel (1) for analytical examination, characterised in that the sample vessel (1) forms a cavity, into which the substance to be examined is introduced as a core and a heating section for indirect heat transfer is applied along the filling of substance to be examined.