Planar Electrochromatography Apparatus Elevated Pressure
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Solution Overview
Problem
Conventional chromatography techniques face challenges in efficiently separating mixtures at atmospheric pressure, as they often result in slow analysis times and reduced efficiency due to liquid accumulation and heat retention, limiting the application of higher voltages and electric fields.
Innovation Solution
The development of a planar electrochromatography apparatus that applies pressure greater than atmospheric pressure using a movable die block and a fluid ram, allowing for the use of higher voltages and electric fields, which enhances the separation efficiency by reducing the space between particles in the sorbent bed and promoting rapid mobile phase migration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional chromatography is performed at atmospheric pressure, then the system is simple to operate, but analysis time is long and separation efficiency is reduced due to liquid accumulation and heat retention
Solution Approach 1:
The patent applies pressure greater than atmospheric pressure to the chromatography system, fundamentally changing the pressure parameter from standard conditions to elevated conditions. This parameter change enables faster mobile phase migration and improved heat dissipation, directly resolving the contradiction between simple operation and long analysis time by accepting controlled system complexity to achieve significantly improved productivity
2Speed
If higher voltages are applied to accelerate mobile phase migration, then analysis time is reduced, but heat accumulation increases and liquid accumulates on the surface
Solution Approach 1:
The patent changes the pressure parameter from atmospheric to elevated pressure, which enables the system to dissipate heat more effectively and prevents liquid accumulation on the surface. This allows higher voltages to be applied safely, increasing mobile phase migration speed without the harmful side effects of heat accumulation and liquid pooling that would otherwise occur
3Manufacturing precision
If pressure is increased to prevent liquid accumulation and improve heat removal, then separation efficiency increases, but device complexity increases
Solution Approach 1:
The patent implements a pressure increase from atmospheric to elevated levels, which directly improves separation efficiency by preventing liquid accumulation and enhancing heat removal. The pressure application mechanism, while adding some complexity, uses straightforward components like die blocks and fluid rams to achieve the pressure increase, making the complexity increase manageable compared to the significant gains in separation efficiency
Solution Approach 2:
The patent employs hydraulic or pneumatic mechanisms (fluid rams) to generate and apply the elevated pressure to the chromatography system. This approach uses well-established fluid pressure technology to achieve the necessary pressure levels in a controlled and reliable manner, resolving the contradiction by providing a practical implementation method that balances the increased device complexity with improved separation efficiency
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
This approach significantly reduces analysis time, increases separation efficiency, and allows for the use of higher electric fields, leading to sharper peaks and improved resolution in chromatographic separations.
Implementation Method 1
a die block which is movable to exert a pressure greater than atmospheric pressure on a chromatography sample plate
Implementation Method 2
The movable plate may be moved by use of a fluid ram. In certain implementations, the fluid ram is embodied as a hydraulic fluid ram
Implementation Method 3
An electrical potential is created across the stationary phase with a first electrode and a second electrode so as to cause a liquid mobile phase to be advanced across the stationary phase
Implementation Method 4
A sheet of electrically insulating, thermally conducting material may be sandwiched between the plate and the compression surface into which the plate is urged
Data Source
AI summary
According to one aspect of the disclosure, there is provided an apparatus (210) for performing electrochromatography. The apparatus (210) includes a die block (222) which is movable to exert a pressure greater than atmospheric pressure on a chromatography sample plate during performance of an electrochromatography procedure. A method of performing electrochromatography is also disclosed.