Adapter for Mass Spectrometer Vacuum Coupling
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Solution Overview
Problem
Existing methods for coupling direct sample analysis devices to mass spectrometers often require breaking the vacuum, necessitating lengthy pumping processes and capillary replacement, which delays sample analysis and complicates instrument operation.
Innovation Solution
An adapter system that includes a capillary sleeve and end cap extension, configured for friction fit coupling to the mass spectrometer's capillary inlet, with insulators for electrical decoupling and centering, allowing direct fluidic coupling without breaking the vacuum or removing lenses, enabling immediate sample analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If direct sample analysis device is coupled to mass spectrometer using existing methods, then sample analysis can be performed, but vacuum must be broken requiring lengthy pumping processes and capillary replacement
Solution Approach 1:
The adapter acts as an intermediary component between the direct sample analysis device and the mass spectrometer. It includes a first portion that couples to the capillary inlet and a second portion that couples to the direct sample analysis device, with an insulator between them. This intermediary structure enables vacuum-compatible coupling without requiring vacuum breaking or lengthy pumping processes.
Solution Approach 2:
The adapter is divided into distinct segments: a first portion for coupling to the capillary inlet, a second portion for coupling to the direct sample analysis device, and an insulator portion. This segmentation allows each component to perform its specific function while maintaining vacuum integrity, eliminating the need for complete disassembly and repumping.
2Ease of operation
If existing coupling methods are used, then device can be connected, but capillary replacement is required which complicates instrument operation
Solution Approach 1:
The adapter provides a universal coupling interface that works with both the mass spectrometer's capillary inlet and the direct sample analysis device. The standardized adapter design eliminates the need for different coupling procedures for different device types, simplifying operation and reducing complexity.
3Reliability
If adapter with insulator is used, then electrical decoupling is achieved, but adapter structure becomes more complex
Solution Approach 1:
The insulator is merged with the adapter body as an integrated component rather than a separate attachment. The insulator portion is formed as part of the adapter structure, providing electrical decoupling between the first and second portions while maintaining a compact, unified design that does not significantly increase overall complexity.
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 immediate sample analysis by maintaining constant vacuum pressure and avoiding lengthy pumping delays, allowing for rapid integration of direct sample analysis devices without compromising instrument integrity.
Implementation Method 1
an insulator between the internal sleeve and the external sleeve to electrically decouple the internal sleeve from the external sleeve
Implementation Method 2
configured for friction fit coupling to the mass spectrometer's capillary inlet
Data Source
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AI summary
Certain embodiments described herein are directed to adapters for use in coupling a direct sample analysis device to an analytical instrument such as, for example, a mass spectrometer. In some examples, the adapter can include an internal coupler separated from an external coupler through an insulator. Certain features, aspects and embodiments are directed to an adapter configured to permit coupling of a direct sample analysis device to an analytical instrument. In some embodiments, the adapter is configured to couple the direct sample analysis device to a mass spectrometer.