Demountable ICP Torch Assembly for Reliable Plasma Ignition
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Solution Overview
Problem
Existing inductively coupled plasma (ICP) analysis systems face challenges in maintaining efficient plasma generation and component longevity, particularly in mass cytometry applications, where the plasma torch assembly is difficult to maintain and replace due to integrated ignition electrodes, leading to increased operational costs and reduced system efficiency.
Innovation Solution
A demountable ICP torch holder assembly with an external ignition device using dielectric barrier discharge and an ICP load coil with an annular fin, allowing for easy removal and replacement of torch components, reducing maintenance costs and extending component lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ignition electrode is integrated into the ICP torch assembly, then the plasma can be ignited reliably, but the torch assembly becomes difficult to maintain and replace
Solution Approach 1:
The ICP torch assembly is divided into separate components: the torch body and the ignition electrode assembly. The ignition electrode is mounted on a removable ring that can be detached from the torch body, allowing the torch to be maintained or replaced without removing the ignition electrode, thus resolving the contradiction between reliable plasma ignition and ease of repair.
2Device complexity
If the ICP torch components are permanently attached, then the system structure is simplified, but maintenance costs increase and component lifespan decreases
Solution Approach 1:
The ignition electrode assembly is designed with dynamic removability - it can be easily attached to and detached from the torch body through a ring structure. This dynamic design allows the torch components to be replaced or maintained independently, reducing maintenance costs and extending component lifespan while maintaining relatively simple system structure.
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 solution enables easier maintenance, reduced operational costs, and extended component lifetime, with improved plasma stability and efficiency in ICP analysis systems, particularly in mass cytometry applications.
Implementation Method 1
an external ignition device using dielectric barrier discharge
Implementation Method 2
inductively coupled plasma (ICP) analysis
Data Source
AI summary
Inductively coupled plasma (ICP) analyzers use an ICP torch to generate a plasma in which a sample is atomized an ionized. Analysis of the atomic ions can be performed by atomic analysis, such as mass spectrometry (MS) or atomic emission spectrometry (AES). Particle based ICP analysis includes analysis of particles such as cells, beads, or laser ablation plumes, by atomizing and ionizing particles in an ICP torch followed by atomic analysis. In mass cytometry, mass tags of particles are analyzed by mass spectrometry, such as by ICP-MS. Systems and methods of the subject application include one or more of: a demountable ICP torch holder assembly, an external ignition device; an ICP load coil comprising an annular fin, particle suspension sample introduction fluidics, and ICP analyzers thereof.