PMID- 31642296 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20191023 LR - 20200108 IS - 1872-2059 (Electronic) IS - 1000-8713 (Linking) VI - 37 IP - 9 DP - 2019 Sep 8 TI - [Preparation and application of tilmicosin-templated magnetic surface molecularly imprinted polymer]. PG - 932-938 LID - 10.3724/SP.J.1123.2019.03005 [doi] AB - A novel magnetic surface molecularly imprinted adsorbent is described. Fe(3)O(4)@SiO(2), tilmicosin, and methacrylic acid were chosen as the support substrate, template molecule, and functional monomer, respectively. 3-Methacryloxypropyltrimethoxysilane was chemically bonded onto the surface of Fe(3)O(4)@SiO(2) via a silanization reaction and used as the crosslinking agent in the subsequent reaction. The obtained magnetic surface molecularly imprinted polymer (MS-MIP) showed high selectivity and high enrichment capacity towards macrolide antibiotics (MACs), as indicated by the 212-, 275-, 675-, and 293-fold enrichment factors for spiramycin, josamycin, tilmicosin, and tylosin tartrate, separately. Because of the marked cavities onto the surface of the MS-MIP, the time required to reach adsorption equilibrium (30 min) was shorter than that for traditional MIP sorbents. Moreover, the adsorbent could be reused at least 6 times. Finally, the MS-MIP was used in combination with high performance liquid chromatography-ultraviolet detection (HPLC-UV) for the extraction and enrichment of four MACs in milk powder samples. The limits of detection (LODs) and limits of quantitation (LOQs) for the four MACs were in the range of 0.58-1.36 mug/kg and 1.92-4.55 mug/kg, respectively. The interday (n=5) and intraday (n=3) recoveries were in the range of 83.2%-123.0% at three spiked levels of 80, 200, and 500 mug/kg, under all the experimental conditions employed, and the relative standard deviations were less than 12.2%. FAU - Xia, Zhangyueyi AU - Xia Z AD - Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China. FAU - Yang, Bingcheng AU - Yang B AD - Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China. FAU - Zhang, Feifang AU - Zhang F AD - Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China. FAU - Liang, Xinmiao AU - Liang X AD - Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China. LA - chi PT - English Abstract PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 SB - IM OTO - NOTNLM OT - high performance liquid chromatography (HPLC) OT - macrolide antibiotics OT - magnetic solid phase extraction OT - milk powder OT - surface molecularly imprinted polymer EDAT- 2019/10/24 06:00 MHDA- 2019/10/24 06:01 CRDT- 2019/10/24 06:00 PHST- 2019/10/24 06:00 [entrez] PHST- 2019/10/24 06:00 [pubmed] PHST- 2019/10/24 06:01 [medline] AID - 10.3724/SP.J.1123.2019.03005 [doi] PST - ppublish SO - Se Pu. 2019 Sep 8;37(9):932-938. doi: 10.3724/SP.J.1123.2019.03005.