Secondary Stage Fluid Separation Device with Pressure Relief
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Solution Overview
Problem
Two-dimensional liquid chromatography systems are complex, large, and lack flexibility, with pressure spikes during fluidic sample separation potentially damaging detectors and deteriorating data quality due to overpressure issues during modulator valve switching or fluid acceptance interruptions.
Innovation Solution
A secondary stage sample separation device with a detachable fluidic interface and integrated pressure reduction mechanisms, such as pressure relief valves and elastic members, to manage overpressure and maintain system flexibility by accommodating fluidic sample material and redirecting flow to prevent damage to primary stage detectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a two-dimensional liquid chromatography system is used for sample separation, then separation capability is improved, but device complexity and size increase
Solution Approach 1:
The system is divided into a primary stage separation device and a secondary stage separation device that can be independently operated or combined. The secondary stage device includes separate functional modules (modulator valve, separation column, detector) that can be selectively activated based on separation needs, reducing overall system complexity when full 2D separation is not required.
Solution Approach 2:
The secondary stage separation device is designed to be universally compatible with multiple primary stage devices through standardized fluidic interfaces. The same secondary stage apparatus can be coupled to different primary stage devices, allowing one device to perform multiple separation functions rather than requiring dedicated 2D systems for each application.
2Measurement precision
If a two-dimensional liquid chromatography system is used for sample separation, then separation capability is improved, but system size increases
Solution Approach 1:
The secondary stage separation device is designed as a compact, modular unit that can be positioned close to the primary stage device. By segmenting the system into two closely-integrated stages rather than one large system, the overall footprint is reduced while maintaining separation capabilities.
3Adaptability or versatility
If modulator valve switching is performed in the secondary stage, then fraction routing capability is improved, but pressure spikes occur that can damage detectors
Solution Approach 1:
A pressure reduction mechanism is integrated into the secondary stage device to anticipate and cushion against pressure spikes before they reach the detector. This protective mechanism is built into the system architecture in advance, preventing damage to detectors during modulator valve switching operations.
Solution Approach 2:
The pressure reduction mechanism acts as an intermediary element between the modulator valve and the detector. It mediates the pressure fluctuations generated by valve switching, smoothing the pressure profile before fluid reaches the detector while maintaining the fraction routing functionality of the modulator valve.
4Adaptability or versatility
If the secondary stage device is coupled to primary stage devices with different flow rates, then system adaptability is improved, but pressure management becomes complex
Solution Approach 1:
The secondary stage device incorporates a universal fluidic interface design that can accept fluid from primary stage devices operating at different flow rates. The pressure reduction mechanism is integrated into this universal interface, allowing the same device configuration to adapt to various flow conditions without requiring complex pressure management adjustments or multiple specialized interfaces.
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 effectively reduces overpressure, preventing damage to detectors and maintaining data quality by self-sufficiently managing pressure fluctuations, allowing for flexible operation with various primary stage devices and flow rates, thereby enhancing the flexibility and reliability of multi-dimensional sample separation systems.
Implementation Method 1
a pressure reduction mechanism which is configured for reducing pressure at the fluidic interface in the event of an overpressure
Implementation Method 2
The pressure reduction mechanism can accommodate or accept fluidic sample material selectively in the event of a temporary incapability or reduced capability of the secondary stage sample separation device to receive fluidic sample material
Implementation Method 3
comprises an elastic member which is configured to expand elastically in the event of an overpressure to thereby temporarily accommodate fluidic sample material for reducing pressure
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A secondary stage sample separation device (90) for separating at least a portion of a fluidic sample, wherein the secondary stage sample separation device (90) comprises a fluidic interface (89) configured for forming a fluidic coupling between a primary stage sample separation device (10) and the secondary separation device so that the fluidic sample separated by the primary stage sample separation device (10) is fluidically suppliable to the secondary stage sample separation device (90) via the fluidic interface (89) for further separation, and a pressure reduction mechanism (44) configured for reducing pressure at the fluidic interface (89) at least in the event of an overpressure or of an excessive pressure increase.