PMID- 32797914 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20200826 LR - 20200826 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 218 DP - 2020 Oct 1 TI - gamma-Cyclodextrin metal-organic framework supported by polydopamine as stationary phases for electrochromatographic enantioseparation. PG - 121160 LID - S0039-9140(20)30451-3 [pii] LID - 10.1016/j.talanta.2020.121160 [doi] AB - Metal-organic frameworks (MOFs) are a novel class of porous nanomaterials composed of metals and organic linkers that have been used in many fields. A novel stereoselective stationary phase for capillary electrochromatography (CEC) has been developed in this work by employing a biodegradable, easier-to-prepare and green homochiral MOFs (Cu-SD), which composed of octakis-[6-deoxy-6-(3-mercaptopropanoic sodium)]-gamma-cyclodextrin (SD, sugammadex) and transition metal ion (Cu(2+)) supported by polydopamine as linker. The modified capillary was characterized by scanning electron microscopy (SEM), X-ray spectrometry (XRD), energy dispersive (EDS) and Fourier transform infrared spectroscopy (FT-IR). The Cu-SD modified capillary column exhibited outstanding chiral recognition separation for five Dns-DL-amino acids (the DL-forms of phenylalanine, leucine, valine, threonine, serine). In addition, the modified column showed excellent stability and reproducibility. The relative standard deviations (RSDs) of the retention time for intra-day (n = 5) and inter-day (n = 3) and between columns (n = 3) enantioseparations were less than 0.27, 1.45 and 4.88%, respectively. Conceivably, this new-type of gamma-CD-MOF represents a useful chiral stationary phase in electrochromatographic separations, and it has great potential in chiral separation field. CI - Copyright (c) 2020 Elsevier B.V. All rights reserved. FAU - Li, Zhentao AU - Li Z AD - Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China; State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing, 10080, China. FAU - Mao, Zhenkun AU - Mao Z AD - Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China. FAU - Zhou, Wei AU - Zhou W AD - Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China. FAU - Chen, Zilin AU - Chen Z AD - Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China; State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing, 10080, China. Electronic address: chenzl@whu.edu.cn. LA - eng PT - Journal Article DEP - 20200522 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R SB - IM OTO - NOTNLM OT - Chiral stationary phase OT - Dns-DL-amino acids OT - Electrochromatography OT - Enantioseparation OT - Open-tubular column OT - gamma-CD-MOF EDAT- 2020/08/17 06:00 MHDA- 2020/08/17 06:01 CRDT- 2020/08/17 06:00 PHST- 2020/02/11 00:00 [received] PHST- 2020/05/07 00:00 [revised] PHST- 2020/05/10 00:00 [accepted] PHST- 2020/08/17 06:00 [entrez] PHST- 2020/08/17 06:00 [pubmed] PHST- 2020/08/17 06:01 [medline] AID - S0039-9140(20)30451-3 [pii] AID - 10.1016/j.talanta.2020.121160 [doi] PST - ppublish SO - Talanta. 2020 Oct 1;218:121160. doi: 10.1016/j.talanta.2020.121160. Epub 2020 May 22.