{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T02:14:34Z","timestamp":1783476874846,"version":"3.55.0"},"reference-count":41,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2022,3,8]],"date-time":"2022-03-08T00:00:00Z","timestamp":1646697600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["21575108"],"award-info":[{"award-number":["21575108"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["analyticalsciencejournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Separation Science"],"published-print":{"date-parts":[[2022,5]]},"abstract":"<jats:p>An amino\u2010functionalized magnetic covalent organic framework composite TpBD\u2010(NH<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub>@Fe<jats:sub>3<\/jats:sub>O<jats:sub>4<\/jats:sub> (Tp=Tp1,3,5\u2010triformylphloroglucinol, BD\u2010(NH<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub> is 3,3',4,4'\u2010biphenyltetramine) was prepared by post\u2010synthesis modification. Due to its abundant benzene rings and amino groups, large specific surface area and porous structure, the prepared TpBD\u2010(NH<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub>@Fe<jats:sub>3<\/jats:sub>O<jats:sub>4<\/jats:sub> exhibits high extraction efficiency toward sulfonylurea herbicides. Based on this, a new method of magnetic solid\u2010phase extraction with TpBD\u2010(NH<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub>@Fe<jats:sub>3<\/jats:sub>O<jats:sub>4<\/jats:sub> as the sorbent combined with high\u2010performance liquid chromatography and ultraviolet detection was developed for trace analysis of sulfonylurea herbicides in environmental water, soil and tobacco leaves samples from tobacco land. Under the optimized conditions, the limits of detection within 0.05\u20130.14 \u03bcg\/L were achieved with a high enrichment factor of 217\u2010260\u2010fold, and the relative standard deviations were 4.9\u20137.5% (<jats:italic>n<\/jats:italic>\u00a0=\u00a07, c\u00a0=\u00a00.5 \u03bcg\/L). The linear range was around three orders of magnitude with the square of correlation coefficient higher than 0.9936. The method was applied to analyze five sulfonylurea herbicides in the environmental water, soil, and tobacco leave samples collected from tobacco land. No sulfonylurea herbicides were detected in these samples. The recoveries of target sulfonylurea herbicides in spiked environmental water, soil, and tobacco leaf samples were found in the range of 90.7\u2013104, 70.7\u201399.0, and 59.3\u201397.8%, respectively. The results illustrate that the established TpBD\u2010(NH<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub>@Fe<jats:sub>3<\/jats:sub>O<jats:sub>4<\/jats:sub>\u2010magnetic solid\u2010phase extraction\u2010 high\u2010performance liquid chromatography\u2013ultraviolet detection method is efficient for the analysis of trace sulfonylurea herbicides in environmental samples.<\/jats:p>","DOI":"10.1002\/jssc.202200055","type":"journal-article","created":{"date-parts":[[2022,2,26]],"date-time":"2022-02-26T07:44:47Z","timestamp":1645861487000},"page":"1746-1756","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Amino functionalized magnetic covalent organic framework for magnetic solid\u2010phase extraction of sulfonylurea herbicides in environmental samples from tobacco land"],"prefix":"10.1002","volume":"45","author":[{"given":"Cong","family":"Tian","sequence":"first","affiliation":[{"name":"College of Chemistry and Molecular Sciences Wuhan University  Wuhan 430072 P. 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China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2171-2202","authenticated-orcid":false,"given":"Bin","family":"Hu","sequence":"additional","affiliation":[{"name":"College of Chemistry and Molecular Sciences Wuhan University  Wuhan 430072 P. R. 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