{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T22:45:53Z","timestamp":1789685153016,"version":"4.0.1"},"reference-count":50,"publisher":"Wiley","issue":"19","license":[{"start":{"date-parts":[[2009,8,28]],"date-time":"2009-08-28T00:00:00Z","timestamp":1251417600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Separation Science"],"published-print":{"date-parts":[[2009,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Bisphenol A (BPA)\u2010imprinted polymeric microspheres were synthesized by modified precipitation polymerization (MPP) method. Influences of cross\u2010linker, monomer, porogen volume, and agitation on polymerization were investigated. Proper amount of cross\u2010linker ethyleneglycol\u2010dimethacrylate (EGDMA) was critical to achieve narrowly dispersed microspheres. For template BPA, monomer 4\u2010vinylpyridine (4\u2010VP) was better than MAA to get the best imprinted effects. The optimum template\/monomer ratio was 1:6. Increasing porogen volume increased size dispersity and decreased binding characters. Agitation increased coagulation and resulted in irregular particles. Microspheres with the best binding characters were used as selective stationary phase of chromatographic column to detect BPA in milk, pig urine, and chicken meat. Under optimal chromatographic conditions, the calibration graph was linear with<jats:italic> R<\/jats:italic><jats:sup>2<\/jats:sup> = 0.9994 in the range of 3\u201350 \u03bcmol\/L. The LOD and LOQ were 1 and 3 \u03bcmol\/L, respectively. When large amounts (20 mL or 20 g) of samples were analyzed, the recoveries ranged from 70.2 to 87.3% with RSD less than 4.85% in all samples spiked with 0.05\u20130.2 \u03bcmol\/L BPA. The intra\u2010day and inter\u2010day RSD were less than 1.83 and 3.96%, respectively. Microspheres prepared by MPP are successfully used in molecularly imprinted polymer (MIP)\u2010based analytical column to detect trace BPA in different biologic samples with acceptable accuracy and repeatability.<\/jats:p>","DOI":"10.1002\/jssc.200900207","type":"journal-article","created":{"date-parts":[[2009,8,28]],"date-time":"2009-08-28T16:54:26Z","timestamp":1251478466000},"page":"3265","source":"Crossref","is-referenced-by-count":21,"title":["Selective molecularly imprinted stationary phases for Bisphenol A analysis prepared by modified precipitation 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