Porous Polymeric Separation Material for Pesticide Removal
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Solution Overview
Problem
Conventional chromatographic materials fail to satisfactorily separate and remove pesticides from food and feed products, particularly essential oils, due to low selectivity and resolution, and existing methods like distillation can adversely affect the quality of the oils.
Innovation Solution
A porous polymeric separation material with mesoporous structure, high surface area, and functional groups bound to metal ions like Cu+, Ag+, Pd2+, or Zn2+, which forms ternary complexes with pesticides, allowing for selective extraction and separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional chromatographic materials are used for pesticide separation, then the separation process can be performed, but the selectivity and resolution are insufficient
Solution Approach 1:
The invention changes the chemical parameters of the separation material by introducing metal complexes (Cu+, Ag+, Pd2+, Cu2+, Zn2+) bound to functional groups on the polymeric support. This chemical modification enables selective interaction with pesticide molecules through coordination chemistry, significantly improving separation selectivity and resolution compared to conventional materials without metal complexes.
Solution Approach 2:
The invention creates a composite material system combining a polymeric support structure with metal complexes and functional groups. This composite approach integrates the mechanical stability of the polymer with the selective binding capabilities of metal complexes, achieving both effective separation and high selectivity for pesticides in complex matrices.
2Reliability
If distillation is used to remove pesticides from citrus oils, then pesticides can be removed, but the flavor and taste compounds are simultaneously removed
Solution Approach 1:
The invention applies local quality by creating specific binding sites on the separation material through metal complexes that selectively interact with pesticide molecules. This localized selective binding allows pesticides to be removed while non-polar flavor compounds pass through unaffected, as the metal complexes provide specific chemical affinity only for pesticide functional groups.
Solution Approach 2:
The metal complexes act as intermediaries that mediate the interaction between the separation material and pesticide molecules. These metal complexes provide specific coordination sites that bind pesticides selectively, enabling removal of contaminants while preserving the desired flavor compounds that do not interact with the metal complex binding sites.
3Productivity
If conventional chelate resins are used for small molecule separation, then the separation can be performed, but the selectivity and resolution are poor
Solution Approach 1:
The invention changes the chemical parameters by incorporating specific metal complexes (Cu+, Ag+, Pd2+, Cu2+, Zn2+) with different coordination chemistries and binding affinities. This allows optimization of both capacity and resolution by selecting appropriate metal ions that provide strong binding for high capacity while maintaining selectivity for high resolution in separating small molecule pesticides.
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 material effectively removes pesticides from essential oils with improved selectivity and resolution, minimizing the loss of valuable oil components and maintaining oil quality.
Implementation Method 1
The material comprises one or more functional group(s) bound to one or more metal ion(s) selected from the group consisting of Cu+, Ag+, Pd2+, Cu2+ or Zn2+
Implementation Method 2
forms ternary complexes with pesticides, allowing for selective extraction and separation
Data Source
AI summary
The present invention relates to a mesoporous polymeric separation material comprising one or more functional groups bound to metal ions from Cu, Zn, Ag, or Pd. Methods of producing the material, as well as methods for its preparation, and use of said material in separation of pesticides from food or feed products is disclosed.