PMID- 17432580 OWN - NLM STAT- MEDLINE DCOM- 20100610 LR - 20161018 IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 25 IP - 1 DP - 2007 Jan TI - [Analysis of monosaccharides and uronic acids in polysaccharides by pre-column derivatization with p-aminobenzoic acid and high performance liquid chromatography]. PG - 75-9 AB - An ion-pair reversed-phase high performance liquid chromatographic (RP-HPLC) method for the simultaneous determination of carbohydrate and uronic acids was developed. p-Aminobenzoic acid (p-AMBA) was used for pre-column derivatization of the analytes, enabling fluorescence (lambda(ex) = 313 nm, lambda(em) = 358 nm) or ultraviolet (UV at 303 nm) detection. Reaction conditions such as reaction temperature and reaction time were optimized. Atlantis dC18 column with hydrophilic end capping was selected for the separation of derivatives. Effects of mobile phase compositions such as ion pairs and their concentrations and pH on the retention behaviors and separation results of 9 monosaccharides and 2 uronic acids were investigated. Derivatives of fructose, galactose, glucose, mannose, xylose, arabinose, ribose, galacturonic acid, fucose, glucuronic acid and rhamnose were separated within 42 min, applying tetrabutyl ammonium hydrogen bisulfate (TBAHSO4) as the ion pair reagent. The detection limits were between 3.38 x 10(-8) mol/L and 176 x 10(-8) mol/L for fluorescence detection and between 2.55 x 10(-7) mol/L and 13.4 x 10(-7) mol/L for UV detection. Good linearities were obtained with correlation coefficients (r2) above 0.99. The relative standard deviations (RSDs) of the peak area of the derivatives in 12 - 51 h after derivatization were from 2.5% to 3.9%. This method has been applied for the determination of mono-/disaccharides and uronic acids in spirulina polysaccharide after dissolved in trifluoroacetic acid solution (2 mol/L). The results showed this method is suitable for the analysis of monosaccharide compositions in polysaccharides. FAU - Hao, Guitang AU - Hao G AD - School of Chemistry and Material Engineering of Southern Yangtze University, Wuxi 214036, China. FAU - Chen, Shangwei AU - Chen S FAU - Zhu, Song AU - Zhu S FAU - Yin, Hongping AU - Yin H FAU - Dai, Jun AU - Dai J FAU - Cao, Yuhua AU - Cao Y LA - chi PT - English Abstract PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Monosaccharides) RN - 0 (Polysaccharides) RN - 0 (Uronic Acids) RN - TL2TJE8QTX (4-Aminobenzoic Acid) SB - IM MH - 4-Aminobenzoic Acid/*chemistry MH - Chromatography, High Pressure Liquid/*methods MH - Hydrogen-Ion Concentration MH - Molecular Structure MH - Monosaccharides/analysis/*chemistry MH - Polysaccharides/*chemistry MH - Reproducibility of Results MH - Uronic Acids/analysis/*chemistry EDAT- 2007/04/17 09:00 MHDA- 2010/06/11 06:00 CRDT- 2007/04/17 09:00 PHST- 2007/04/17 09:00 [pubmed] PHST- 2010/06/11 06:00 [medline] PHST- 2007/04/17 09:00 [entrez] PST - ppublish SO - Se Pu. 2007 Jan;25(1):75-9.