AI Article Synopsis
- - A new ultrasonic synthesis method created a magnetic covalent organic framework by encapsulating FeO nanoparticles with imine-type COF, utilizing specific chemical reactions that took only 2 hours.
- - The resulting nanocomposites had a large surface area and impressive adsorption capabilities, leading to the development of a fast extraction method for analyzing bisphenol compounds in various liquids.
- - This method is efficient, requiring less time and equipment, and showed excellent accuracy and reliability, achieving detection limits of 0.33 to 0.60 μg L in food samples like water, milk, vinegar, and soy sauce with good recovery rates.
Article Abstract
A simple ultrasonic synthesis strategy was developed for a novel magnetic covalent organic framework. Firstly, the FeO nanoparticles were encapsulated by imine-type COF, which generated by the Schiff reaction of 4,4',4''-(1,3,5-Triazine-2,4,6-triyl)-trianiline (TAPT) and tris(4-formylphenyl)-amine (TFPA) using ultrasonic synthesis method within 2 h. The synthesised nanocomposites showed a sizeable specific surface area, and high adsorption capacity. A fast, sensitive MSPE method with FeO@TAPT-TFPA-COF as adsorbent for analysing bisphenol compounds was developed. This method's advantages were simple operation, short extraction time, and avoidance of the use of centrifugal equipment. The method validation indicate that this method exhibited superior linearity, and detection limits range between 0.33 and 0.60 μg L. The recoveries of BPs ranged from 74.7 % to 107.0 %, with relative standard deviations of less than 3.8 % in water, milk, vinegar, and soy sauce samples. The proposed method was successfully applied for extracting BPs in food samples.
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| http://dx.doi.org/10.1016/j.foodchem.2023.138264 | DOI Listing |
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