PMID- 26065570 OWN - NLM STAT- MEDLINE DCOM- 20160808 LR - 20181202 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1428 DP - 2016 Jan 8 TI - Aluminum based metal-organic framework-polymer monolith in solid-phase microextraction of penicillins in river water and milk samples. PG - 236-45 LID - S0021-9673(15)00753-0 [pii] LID - 10.1016/j.chroma.2015.05.043 [doi] AB - In this study, aluminum based metal-organic framework (Al-MOF)-organic polymer monoliths were prepared via microwave-assisted polymerization of ethylene dimethacrylate (EDMA), butyl methacrylate (BMA) with different weight percentages of Al-MOF (MIL-53; 37.5-62.5%) and subsequently utilized as sorbent in solid-phase microextraction (SPME) of penicillins (penicillin G, penicillin V, oxacillin, cloxacillin, dicloxacillin, nafcillin). The Al-MOF-polymer was characterized using Fourier transform infrared (FTIR) spectroscopy, powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and SEM-energy-dispersive X-ray spectroscopy (SEM-EDS) to clarify the retained crystalline structure well as the homogeneous dispersion of Al-MOF (MIL-53) in polymer monolith. The developed Al-MOF-polymer (MIL-53) monolithic column was evaluated according to its extraction recovery of penicillins. Several parameters affecting the extraction recoveries of penicillins using fabricated Al-MOF-polymer (MIL-53) monolithic column including different MIL-53 weight percentages, column length, pH, desorption solvent, and mobile phase flow rate were investigated. For comparison, different Al-based MOFs (MIL-68, CYCU-4 and DUT-5) were fabricated using the optimized condition for MIL-53-polymer (sample matrix at pH 3, 200muL desorption volume using methanol, 37.5% of MOF, 4-cm column length at 0.100mLmin(-1) flow rate). Among all the Al-MOF-polymers, MIL-53(Al)-polymer still afforded the best extraction recovery for penicillins ranging from 90.5 to 95.7% for intra-day with less than 3.5% relative standard deviations (RSDs) and inter-day precision were in the range of 90.7-97.6% with less than 4.2% RSDs. Meanwhile, the recoveries for column-to-column were in the range of 89.5-93.5% (<3.4% RSDs) while 88.5-90.5% (<5.8% RSDs) for batch-to-batch (n=3). Under the optimal conditions, the limit of detections were in the range of 0.06-0.26mugL(-1) and limit of quantifications between 0.20 and 0.87mugL(-1). Finally, the MIL-53-polymer was applied for the extraction of penicillin in river water and milk by spiking trace-level penicillin for as low as 50mugL(-1) and 100mugL(-1) with recoveries ranging from 80.8% to 90.9% (<6.7% RSDs) in river water and 81.1% to 100.7% (<7.1% RSDs) in milk sample, respectively. CI - Copyright (c) 2015 Elsevier B.V. All rights reserved. FAU - Lirio, Stephen AU - Lirio S AD - Department of Chemistry, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li, Taoyuan 320, Taiwan. FAU - Liu, Wan-Ling AU - Liu WL AD - Department of Chemistry, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li, Taoyuan 320, Taiwan. FAU - Lin, Chen-Lan AU - Lin CL AD - Department of Chemistry, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li, Taoyuan 320, Taiwan. FAU - Lin, Chia-Her AU - Lin CH AD - Department of Chemistry, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li, Taoyuan 320, Taiwan. Electronic address: chiaher@cycu.edu.tw. FAU - Huang, Hsi-Ya AU - Huang HY AD - Department of Chemistry, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li, Taoyuan 320, Taiwan. Electronic address: hyhuang@cycu.edu.tw. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150527 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Methacrylates) RN - 0 (Penicillins) RN - 0 (Polymers) RN - 7BK5G69305 (ethylene dimethacrylate) RN - CPD4NFA903 (Aluminum) RN - R5QX287XXU (butyl methacrylate) SB - IM MH - Aluminum/*chemistry MH - Animals MH - Environmental Monitoring/*methods MH - Food Analysis/*methods MH - Methacrylates/chemistry MH - Milk/*chemistry MH - Penicillins/*analysis MH - Polymerization MH - Polymers/*chemistry MH - Rivers/*chemistry MH - Solid Phase Microextraction MH - X-Ray Diffraction OTO - NOTNLM OT - Metal-organic framework (MOF) OT - Milk OT - Penicillin OT - Polymer monolithic column OT - Solid-phase microextraction (SPME) EDAT- 2015/06/13 06:00 MHDA- 2016/08/09 06:00 CRDT- 2015/06/13 06:00 PHST- 2015/02/20 00:00 [received] PHST- 2015/05/14 00:00 [revised] PHST- 2015/05/18 00:00 [accepted] PHST- 2015/06/13 06:00 [entrez] PHST- 2015/06/13 06:00 [pubmed] PHST- 2016/08/09 06:00 [medline] AID - S0021-9673(15)00753-0 [pii] AID - 10.1016/j.chroma.2015.05.043 [doi] PST - ppublish SO - J Chromatogr A. 2016 Jan 8;1428:236-45. doi: 10.1016/j.chroma.2015.05.043. Epub 2015 May 27.