PMID- 25454151 OWN - NLM STAT- MEDLINE DCOM- 20150728 LR - 20181202 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1370 DP - 2014 Nov 28 TI - Rapid analysis of water- and fat-soluble vitamins by electrokinetic chromatography with polymeric micelle as pseudostationary phase. PG - 263-9 LID - S0021-9673(14)01638-0 [pii] LID - 10.1016/j.chroma.2014.10.047 [doi] AB - A novel polymeric micelle, formed by random copolymer poly (stearyl methacrylate-co-methacrylic acid) (P(SMA-co-MAA)) has been used as pseudostationary phase (PSP) in electrokinetic chromatography (EKC) for simultaneous and rapid determination of 11 kinds of water- and fat-soluble vitamins in this work. The running buffer consisting of 1% (w/v) P(SMA-co-MAA), 10% (v/v) 1-butanol, 20% (v/v) acetonitrile, and 30 mM Palitzsch buffer solution (pH 9.2) was applied to improve the selectivity and efficiency, as well as to shorten analysis time. 1-Butanol and acetonitrile as the organic solvent modifiers played the most important roles for rapid separation of these vitamins. The effects of organic solvents on microstructure of the polymeric micelle were investigated. The organic solvents swell the polymeric micelle by three folds, lower down the surface charge density and enhance the microenviromental polarity of the polymeric micelle. The 11 kinds of water- and fat-soluble vitamins could be baseline separated within 13 min. The method was applied to determine water- and fat-soluble vitamins in commercial vitamin sample; the recoveries were between 93% and 111% with the relative standard derivations (RSDs) less than 5%. The determination results matched the label claim. CI - Copyright (c) 2014 Elsevier B.V. All rights reserved. FAU - Ni, Xinjiong AU - Ni X AD - The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China. FAU - Xing, Xiaoping AU - Xing X AD - Chemical and Biological Engineering College, Yancheng Institute of Technology, Yancheng 224051, PR China. FAU - Cao, Yuhua AU - Cao Y AD - The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China. Electronic address: yuhuacao64@gmail.com. FAU - Cao, Guangqun AU - Cao G AD - The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141024 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Fats) RN - 0 (Polymers) RN - 0 (Solvents) RN - 0 (Vitamins) RN - 059QF0KO0R (Water) SB - IM MH - Chromatography, Micellar Electrokinetic Capillary/instrumentation/*methods MH - Fats/chemistry MH - Hydrogen-Ion Concentration MH - Limit of Detection MH - Polymers MH - Reproducibility of Results MH - Solubility MH - Solvents/analysis MH - Temperature MH - Time Factors MH - Vitamins/*analysis MH - Water/chemistry OTO - NOTNLM OT - Microstructure OT - Organic solvent modifier OT - Polymeric micelle OT - Vitamins EDAT- 2014/12/03 06:00 MHDA- 2015/07/29 06:00 CRDT- 2014/12/03 06:00 PHST- 2014/08/27 00:00 [received] PHST- 2014/10/16 00:00 [revised] PHST- 2014/10/17 00:00 [accepted] PHST- 2014/12/03 06:00 [entrez] PHST- 2014/12/03 06:00 [pubmed] PHST- 2015/07/29 06:00 [medline] AID - S0021-9673(14)01638-0 [pii] AID - 10.1016/j.chroma.2014.10.047 [doi] PST - ppublish SO - J Chromatogr A. 2014 Nov 28;1370:263-9. doi: 10.1016/j.chroma.2014.10.047. Epub 2014 Oct 24.