title: [Analysis of vancomycin and its related impurities by hydrophilic interaction liquid chromatography].
abstract: The current reversed-phase liquid chromatography as the main analytical method for vancomycin is inappropriate due to its poor polarity selectivity and mass spectrometry compatibility. Hydrophilic interaction chromatography (HILIC) method has been verified to provide the glycopeptide substances with good retention and polarity selectivity, therefore, an HILIC method was developed for the analysis of vancomycin and its related impurities including norvancomycin, desvancosaminyl vancomycin, dedichloro vancomycin and crystalline degradation product (CDP-1). In this work, a systematic evaluation of retention behavior of vancomycin and its related impurities in hydrophilic interaction chromatography was performed and the influences of stationary phase, acetonitrile content, buffer salt and pH of mobile phase were studied. According to the results, Click XIon column was selected as stationary phase and ammonium formate was additive in the mobile phase. Vancomycin and its related impurities were totally separated under the optimization conditions. It is concluded that hydrophilic interaction chromatography may be a new strategy for the separation of vancomycin and its structural analogues.
authors.forename: Jingyu
authors.initials: J
authors.lastname: Yan
authors.forename: Zhimou
authors.initials: Z
authors.lastname: Guo
authors.forename: Junjie
authors.initials: J
authors.lastname: Ding
authors.forename: Aijin
authors.initials: A
authors.lastname: Shen
authors.forename: Jixia
authors.initials: J
authors.lastname: Wang
authors.forename: Gaowa
authors.initials: G
authors.lastname: Jin
authors.forename: Xinmiao
authors.initials: X
authors.lastname: Liang
mesh_terms: D002021:Buffers; D002853:Chromatography, Liquid; D056148:Chromatography, Reverse-Phase; D057927:Hydrophobic and Hydrophilic Interactions; D009930:Organic Chemicals; D014640:Vancomycin / Q000031:analogs & derivatives / Q000032:analysis*
chemical_list: D002021:Buffers; D009930:Organic Chemicals; D014640:Vancomycin; C511195:norvancomycin