PMID- 33957344 OWN - NLM STAT- MEDLINE DCOM- 20210520 LR - 20210520 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1647 DP - 2021 Jun 21 TI - Benzoic acid-modified monolithic column for separation of hydrophilic compounds by capillary electrochromatography with high content of water in mobile phase. PG - 462166 LID - S0021-9673(21)00290-9 [pii] LID - 10.1016/j.chroma.2021.462166 [doi] AB - Hydrophilic column combined with mobile phase containing high content of water is a green method for the separation of polar compounds, but there are few related studies, and the separation efficiency and performance of existing columns still needs to be improved. In this work, a novel monolithic column for separation of hydrophilic compounds under both high water content and HILIC condition, was prepared by in-situ polymerization using 4-vinylbenzoic acid (VBA) and 1-(Acryloyloxy)-3-(methacryloyloxy)-2-propanol (AMAP) as functional monomers. The poly(VBA-co-AMAP) monolithic column showed good separation performance towards various polar compounds under different chromatographic conditions based on the pi-interaction, hydrophobic and hydrogen bonding interactions provided by 4-vinylbenzoic acid functional monomer. The highest column efficiency for adenine was over 2.15 x 10(5) plates m(-1) (theoretical plate, N). In addition, the monolith showed good stability and reproducibility, the relative standard deviations (RSDs) of retention times within days (n = 5), between days (n = 5), between columns (n = 3) and between batches (n = 3) were 0.47-1.13%, 1.20-2.68%, 0.59-1.78% and 1.54-3.60%, respectively. This novel type of monolith has great application potential in the separation of hydrophilic compounds. CI - Copyright (c) 2021. Published by Elsevier B.V. FAU - Hu, Changjun AU - Hu C 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 100080, 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; State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing 100080, China. 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 100080, China. FAU - Li, Qiaoyan AU - Li Q 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 100080, 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 100080, China. Electronic address: chenzl@whu.edu.cn. LA - eng PT - Journal Article DEP - 20210422 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 059QF0KO0R (Water) RN - 8SKN0B0MIM (Benzoic Acid) RN - JAC85A2161 (Adenine) SB - IM MH - Adenine/analysis/chemistry/isolation & purification MH - Benzoic Acid/*chemistry MH - Capillary Electrochromatography/instrumentation/*methods MH - Hydrophobic and Hydrophilic Interactions MH - Reproducibility of Results MH - Water/chemistry OTO - NOTNLM OT - Benzoic acid OT - Capillary electrochromatography OT - High content of water in mobile phase OT - Monolithic column OT - Pharmaceutical analysis COIS- Declaration of Competing Interest The authors declared no conflict of interest. EDAT- 2021/05/07 06:00 MHDA- 2021/05/21 06:00 CRDT- 2021/05/06 20:34 PHST- 2020/11/29 00:00 [received] PHST- 2021/04/07 00:00 [revised] PHST- 2021/04/12 00:00 [accepted] PHST- 2021/05/07 06:00 [pubmed] PHST- 2021/05/21 06:00 [medline] PHST- 2021/05/06 20:34 [entrez] AID - S0021-9673(21)00290-9 [pii] AID - 10.1016/j.chroma.2021.462166 [doi] PST - ppublish SO - J Chromatogr A. 2021 Jun 21;1647:462166. doi: 10.1016/j.chroma.2021.462166. Epub 2021 Apr 22.