PMID- 26187925 OWN - NLM STAT- MEDLINE DCOM- 20160808 LR - 20151217 IS - 1945-239X (Electronic) IS - 0021-9665 (Linking) VI - 54 IP - 1 DP - 2016 Jan TI - Simultaneous Determination of Five Alkaloid Compounds in a Drug Based on a Hydrophilic Monolithic Column by Capillary Electrochromatography. PG - 88-95 LID - 10.1093/chromsci/bmv096 [doi] AB - A novel capillary electrochromatography (CEC) method was developed by using a hydrophilic monolithic column for the simultaneous determination of five alkaloids in a drug. The monolithic stationary phase was first prepared via in situ polymerization of acrylamide (AM), glycidyl methacrylate (GMA), N,N'-methylenebisacrylamide (MBA) and 2-acrylamido-2-methyl-1-propane-sulfonic acid (AMPS) in a ternary porogen solvent system consisting of cyclohexanol, dodecanol and toluene. The obtained monolithic stationary phase was subsequently modified by 0.1 mol/L ammonia water for opening epoxide groups of GMA. The separation performance and efficiency of the resulting monolithic column were investigated by the use of five compounds (thiourea, aniline, naphthylamine, diphenylamine and dimethyl acetamide) by CEC. The optimized monolithic column has obtained high column efficiencies with 74,000-121,000 theoretical plates/m. Finally, the prepared monolithic column was used to separate and determine five alkaloids (piperine, nuciferine, kukoline, berberine and tetrandrine) using CEC. Under the conditions of acetonitrile/10 mM phosphate buffer solution (65/35, v/v, pH 8.5) and 15 kV applied voltage, the baseline separation of five alkaloids was achieved. The proposed method has been successfully applied to the determination of berberine in a tablet sample. The percentage of recovery of spiked tablet samples ranged from 93.4 to 108.0% with relative standard deviations (RSDs) <9.20%. CI - (c) The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com. FAU - Chen, Zongbao AU - Chen Z AD - Key Laboratory of Applied Organic Chemistry, College of Jiangxi Province, Department of Chemistry, Shangrao Normal University, Shangrao, Jiangxi 334001, PR China Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University, Fuzhou, Fujian 335002, PR China chenzongbao19780920@126.com. FAU - Ye, Qing AU - Ye Q AD - Key Laboratory of Applied Organic Chemistry, College of Jiangxi Province, Department of Chemistry, Shangrao Normal University, Shangrao, Jiangxi 334001, PR China. FAU - Liu, Linghai AU - Liu L AD - Key Laboratory of Applied Organic Chemistry, College of Jiangxi Province, Department of Chemistry, Shangrao Normal University, Shangrao, Jiangxi 334001, PR China. FAU - Dong, Hongxia AU - Dong H AD - Key Laboratory of Applied Organic Chemistry, College of Jiangxi Province, Department of Chemistry, Shangrao Normal University, Shangrao, Jiangxi 334001, PR China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150716 PL - United States TA - J Chromatogr Sci JT - Journal of chromatographic science JID - 0173225 RN - 0 (Alkaloids) RN - 0 (Buffers) SB - IM MH - Alkaloids/*analysis MH - Buffers MH - Capillary Electrochromatography/*methods MH - Hydrogen-Ion Concentration MH - Hydrophobic and Hydrophilic Interactions MH - Microscopy, Electron, Scanning MH - Reproducibility of Results EDAT- 2015/07/19 06:00 MHDA- 2016/08/09 06:00 CRDT- 2015/07/19 06:00 PHST- 2015/04/09 00:00 [received] PHST- 2015/07/19 06:00 [entrez] PHST- 2015/07/19 06:00 [pubmed] PHST- 2016/08/09 06:00 [medline] AID - bmv096 [pii] AID - 10.1093/chromsci/bmv096 [doi] PST - ppublish SO - J Chromatogr Sci. 2016 Jan;54(1):88-95. doi: 10.1093/chromsci/bmv096. Epub 2015 Jul 16.