PMID- 33396060 OWN - NLM STAT- MEDLINE DCOM- 20210114 LR - 20210114 IS - 1090-2414 (Electronic) IS - 0147-6513 (Linking) VI - 208 DP - 2021 Jan 15 TI - Carboxyl-functionalized hollow polymer microspheres for detection of trace metal elements in complex food matrixes by ICP-MS assisted with solid-phase extraction. PG - 111729 LID - S0147-6513(20)31566-9 [pii] LID - 10.1016/j.ecoenv.2020.111729 [doi] AB - In this work, carboxyl-functionalized hollow polymer microspheres (CHPMs) was successfully fabricated using poly (styrene-itaconic anhydride) particles as the core template and itaconic anhydride and trans-anethole cross-linked with divinylbenzene as the shell. The desirable microspheres and hollow structure of CHPMs were demonstrated by scanning and transmission electron microscopies, respectively. The characterized CHPMs as an adsorbent was packed into a solid phase extraction column to simultaneously detect the V(V), Cr(III), Cu(II), Cd(II), and Pb(II) in digested food samples by inductively coupled plasma-mass spectrometry (ICP-MS). A series of experimental parameters of solid-phase extraction (SPE) were investigated through vast experiments to improve sensitivity of the proposed method in metal ions detection. The detection limits of the method reached 0.8-3.2 ng L(-1) for the target elements, and the relative standard deviations (RSDs) ranging from 1.2% to 3.5% were obtained from eleven parallel experiments using a 1.0 mug L(-1) sample solution. The stability allowed the material to withstand more than 15 cycling while the recoveries remained above 88%. In food samples, the detection limits were at 0.20-0.80 mug kg(-1), and satisfactory recoveries of 85-104% were obtained in spike tests of laver, fish as well as chicken. CI - Copyright (c) 2020 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Qin, Jiaxing AU - Qin J AD - State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China. FAU - Su, Zheng AU - Su Z AD - State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China. FAU - Mao, Yuehui AU - Mao Y AD - State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China. FAU - Liu, Cuicui AU - Liu C AD - College of Food Science and Bioengineering, Tianjin Agricultural University, Tianjin 300384, China. FAU - Qi, Bin AU - Qi B AD - College of Food Science and Bioengineering, Tianjin Agricultural University, Tianjin 300384, China. FAU - Fang, Guozhen AU - Fang G AD - State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China. Electronic address: fangguozhen@tust.edu.cn. FAU - Wang, Shuo AU - Wang S AD - State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China; Research Center of Food Science and Human Health, School of Medicine, Nankai University, Tianjin 300071, China. Electronic address: s.wang@tust.edu.cn. LA - eng PT - Journal Article DEP - 20201208 PL - Netherlands TA - Ecotoxicol Environ Saf JT - Ecotoxicology and environmental safety JID - 7805381 RN - 0 (Polymers) RN - 0 (Trace Elements) SB - IM MH - Food Analysis/*methods MH - Hydrogen-Ion Concentration MH - Microspheres MH - Polymers/chemistry MH - Solid Phase Extraction/*methods MH - Spectrum Analysis MH - Trace Elements/*analysis OTO - NOTNLM OT - Carboxyl-functionalized hollow polymer microspheres OT - Digested food samples OT - ICP-MS OT - Metal ions detection OT - Solid-phase extraction EDAT- 2021/01/06 06:00 MHDA- 2021/01/15 06:00 CRDT- 2021/01/05 01:08 PHST- 2020/08/31 00:00 [received] PHST- 2020/11/21 00:00 [revised] PHST- 2020/11/25 00:00 [accepted] PHST- 2021/01/05 01:08 [entrez] PHST- 2021/01/06 06:00 [pubmed] PHST- 2021/01/15 06:00 [medline] AID - S0147-6513(20)31566-9 [pii] AID - 10.1016/j.ecoenv.2020.111729 [doi] PST - ppublish SO - Ecotoxicol Environ Saf. 2021 Jan 15;208:111729. doi: 10.1016/j.ecoenv.2020.111729. Epub 2020 Dec 8.