Automated Mass Spectrometer Startup Routine
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Solution Overview
Problem
Inexperienced users face difficulties in determining the operational state of mass spectrometers, which is crucial for ensuring accurate performance, especially with the development of miniature mass spectrometers intended for wide applications.
Innovation Solution
An automated start-up routine that generates a vacuum and uses an internal ion source to detect ions, determining the mass spectrometer's operational state, and automatically retunes or recalibrates if necessary, ensuring the instrument is in a correct operational state before use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operational checks are performed by inexperienced users, then basic operation is possible, but accurate determination of operational state is difficult
Solution Approach 1:
The mass spectrometer automatically performs operational checks using an internal ion source and control system. The system self-diagnoses its operational state by detecting ions generated internally and comparing signals against expected parameters, eliminating the need for manual intervention while ensuring accurate assessment of vacuum quality, ion source performance, and detector functionality.
Solution Approach 2:
An internal ion source acts as an intermediary test object to assess system performance. By generating known test ions within the vacuum chamber and measuring their detection signals, the system indirectly evaluates the operational state of vacuum quality, ion transmission paths, and detector sensitivity without requiring external samples or manual procedures.
2Extent of automation
If automated start-up routine is implemented, then operational state determination is automated, but system complexity increases
Solution Approach 1:
The internal ion source serves multiple functions: it generates calibration ions for mass accuracy verification, provides test ions for detector sensitivity checks, and enables vacuum quality assessment. This multi-functionality reduces the need for separate test components, minimizing added complexity while achieving comprehensive automated operational verification.
Solution Approach 2:
The automated operational check system merges the ion source, mass analyzer, and detector into a unified self-testing pathway. The control system integrates vacuum monitoring, ion generation, mass analysis, and signal evaluation into a single automated sequence that occurs during normal startup, combining multiple diagnostic functions without requiring separate hardware systems.
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 inexperienced users to confidently determine the operational state of mass spectrometers, ensuring accurate performance and reliability by automating the check process, thereby facilitating safe and effective operation.
Implementation Method 1
automatically generating a vacuum within one or more vacuum chambers of a mass spectrometer
Implementation Method 2
automatically generating first ions using an internal ion source
Data Source
AI summary
A method of automatically performing a routine to check the operational state of a mass spectrometer is disclosed wherein the method is performed automatically as a start-up routine upon switching ON the mass spectrometer. The method comprises automatically generating a vacuum within one or more vacuum chambers of a mass spectrometer and automatically generating first ions using an internal ion source, wherein the internal ion source is located within a vacuum chamber of the mass spectrometer or is located within a chamber downstream from an atmospheric pressure interface, and detecting at least some of the first ions or second ions derived from the first ions. The method further comprises automatically determining whether or not the mass spectrometer is in a correct operational state.