Outlet Purification Module for Low-Backpressure Solvent Dispensing
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Solution Overview
Problem
Existing liquid chromatography systems face challenges in maintaining solvent purity due to impurities from container materials and atmospheric contaminants, which can interfere with detection and cause pressure drops, leading to degraded separation results and quantization accuracy.
Innovation Solution
A purification element with a high surface area-to-volume structure and functionalized coatings is used to capture impurities through chemical interactions, reducing operational backpressure and maintaining solvent purity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional filtration media with small pore sizes are used to remove impurities, then purification effectiveness is improved, but operational backpressure increases
Solution Approach 1:
The patent utilizes porous purification media with optimized pore structures that balance filtration effectiveness with pressure drop considerations. The media is designed to provide sufficient surface area for impurity capture while maintaining adequate flow characteristics to minimize backpressure during solvent delivery operations.
Solution Approach 2:
The invention employs composite purification media combining multiple materials with complementary properties. This includes integrating adsorbent materials with filtration matrices to achieve both effective impurity removal and acceptable pressure characteristics, resolving the contradiction between purification performance and operational pressure.
2Reliability
If purification media with large surface area are used to capture more impurities, then purification effectiveness is improved, but media volume and device complexity increase
Solution Approach 1:
The patent transforms the traditional three-dimensional particle-packed bed into a two-dimensional planar structure. The purification media is configured as a flat cartridge with flow distributors that create laminar flow across the media surface, achieving high surface area utilization without the volume and complexity penalties of traditional deep-bed filtration.
Solution Approach 2:
The purification media is divided into functional zones with different pore sizes and chemical properties. This segmentation allows each region to target specific impurity types while maintaining overall system simplicity and manageable dimensions, avoiding the need for a single complex monolithic 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 effectively removes impurities without excessive pressure drop, ensuring high-purity solvents for chromatography, extending filter lifetime, and maintaining detection accuracy.
Implementation Method 1
a high surface area-to-volume structure at least a portion of the surface of which is functionalized with a compound selected to interact with a chemical or biological impurity dissolved in the liquid to be purified
Implementation Method 2
Capture of impurities by chemical interaction with the functionalized surface can remove contaminants
Implementation Method 3
pass-through filtration based on size exclusion, e.g., by passage through pores in a filter
Data Source
Figure 1~2
Figure 3A
Figure 3B
AI summary
The invention relates to the purification of liquids. A high surface area-to-volume chemically interactive purification medium is positioned at the outlet of a container that purifies the liquid as it is dispensed/extracted. In one embodiment a purification container (1000) has a box-shaped container body that includes a top surface (882), side surfaces (884) and a bottom surface (886) opposite and parallel to the top surface (882). A set of breathing holes (888) in the top surface enables air to vent into the container so that the flow of the dispensed liquid is not impeded by development of an internal vacuum. A purification module containing purification media (1020) is located at the bottom end of a vertically-oriented tube (890). A mating socket can be used to attach to and seal the top of the tube (890) to a tube/conduit to receive the purified liquid from the container (1000).