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The prepared covalent organic framework was properly characterized by different techniques and the results revealed that it had a uniform spherical structure, high crystallinity, satisfactory surface area, and good thermal stability. Moreover, the adsorption performance of the material was explored by using static and dynamic adsorption experiments and the results indicated that the material showed good adsorption capacities for three dyes with adsorption capacities in the range of 55.25\u2013284.10\u00a0mg\/g and the adsorption equilibrium can be achieved in 15\u00a0min. Further, to achieve the best adsorption effects of the material, the influence parameters such as pH, ionic strength, type of desorption solvent, and the material dosage in the solid\u2010phase extraction column, were optimized in turn. Finally, under optimal conditions, the solid\u2010phase extraction coupled with HPLC was applied to the analysis of dyes in food and water samples. The recoveries of dyes in actual samples were satisfactory, revealing the unique applicability of the material in the sample pretreatment field.<\/jats:p>","DOI":"10.1002\/jssc.202200996","type":"journal-article","created":{"date-parts":[[2023,1,18]],"date-time":"2023-01-18T06:54:08Z","timestamp":1674024848000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Fabrication of highly crystalline covalent organic framework for solid\u2010phase extraction of three dyes from food and water samples"],"prefix":"10.1002","volume":"46","author":[{"given":"Junji","family":"Wang","sequence":"first","affiliation":[{"name":"School of Pharmacy Southwest Medical University  Luzhou P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yongqing","family":"Tao","sequence":"additional","affiliation":[{"name":"School of Pharmacy Southwest Medical University  Luzhou P. R. 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