Ionization Chamber Sol-Gel Temperature Control Block
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Solution Overview
Problem
Existing ionization chambers for mass spectrometry lack effective temperature-controlled gas feed systems, which can lead to contamination and inefficient ionization processes due to impurities and deposit formation, especially when using heated gases for desolvation.
Innovation Solution
An ionization chamber with a temperature-control block fabricated using the sol-gel process, incorporating a gas channel that allows for precise temperature control of the gas feed, minimizing contamination risks and optimizing heat transfer efficiency through a labyrinthine path and conductive layers for heating or cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If gas is heated in the ionization chamber to assist vaporization and improve ion yield, then ionization efficiency is improved, but deposit formation and contamination increase
Solution Approach 1:
The gas is pre-heated in a separate temperature-control block before entering the ionization chamber. This preliminary heating action allows the gas to reach the required temperature for effective vaporization assistance while preventing direct heating of the ionization chamber components, thereby reducing deposit formation and contamination in the chamber.
Solution Approach 2:
The heating function is segmented from the ionization chamber by introducing a separate temperature-control block with dedicated gas channels. This segmentation allows the heating process to occur in a isolated region, enabling temperature control to improve ion yield while preventing harmful deposits from forming in the ionization chamber itself.
2Object-affected harmful factors
If heated gas is introduced into the ionization chamber to reduce interfering spray droplets, then mass spectrometer contamination is reduced, but gas purity is compromised by line contamination
Solution Approach 1:
The gas is pre-heated and pre-treated in the temperature-control block before entering the ionization chamber. This preliminary action ensures that the gas reaches the required temperature for effective droplet removal while minimizing its exposure time to contaminating surfaces, thereby maintaining higher gas purity.
Solution Approach 2:
The temperature-control block acts as an intermediary between the gas supply lines and the ionization chamber. This intermediary component provides a controlled environment for gas heating while isolating the high-purity gas from direct contact with potential contamination sources in the main chamber and supply lines.
3Strength
If conventional manufacturing methods are used for the temperature-control block, then structural strength is achieved, but contamination risk increases and cost increases
Solution Approach 1:
The manufacturing process parameters are changed by using sol-gel technology instead of conventional high-temperature ceramic processing. This parameter change allows the production of ceramic or glass materials with high purity and low contamination risk at lower temperatures, while still achieving the required structural strength for the temperature-control block.
Solution Approach 2:
The sol-gel process creates composite ceramic-polymer or ceramic-glass materials that combine the structural strength of ceramics with the purity benefits of low-temperature processing. These composite materials provide both the mechanical strength required for the temperature-control block and the low contamination characteristics needed for mass spectrometry applications.
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
The sol-gel method provides a cost-effective, low-temperature processing solution for ceramic or glass materials, ensuring high-purity gas temperature control, reducing deposit formation, and enhancing ionization efficiency by maintaining precise temperature control near the ionization chamber, thus improving the separation and analysis of ions.
Implementation Method 1
A temperature-control device (14) positioned along the gas channel ensures that a gas flowing in the gas channel is brought to a specific temperature
Implementation Method 2
From the starting materials or precursors in solution, a first step involves producing a gelatinous two-phase system containing both a liquid as well as a solid phase
Implementation Method 3
Some vaporize and thus transfer the ions into the gaseous phase. A heat input into the ionization chamber can, of course, assist the vaporization process
Data Source
AI summary
The invention relates to an ionization chamber for connection to a mass spectrometer. The ionization chamber has a temperature-control block with a gas inlet and a gas channel which starts at the gas inlet and leads into a gas outlet. A temperature-control device is positioned along the gas channel and ensures that a gas flowing in the gas channel is brought to a specific temperature, i.e. it is heated or cooled, before it enters the ionization chamber. The temperature-control block has a formed part into which a structure of the gas channel is incorporated and which is fabricated by means of a sol-gel process, for example out of a glass or ceramic material.