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题名: Separation behavior of basic compounds on unbonded silicon oxynitride and silica high-performance liquid chromatography stationary phases with reversed-phase eluents
作者: Wan, Huihui1;  Zhong, Hongmin1;  Xue, Xingya2;  Liang, Xinmiao2
关键词: Basic compounds ;  Hydrophobicity ;  Reversed-phase eluents ;  Silica ;  Silicon oxynitride
刊名: JOURNAL OF SEPARATION SCIENCE
发表日期: 2016-10-01
DOI: 10.1002/jssc.201600738
卷: 39, 期:20, 页:3860-3867
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
英文摘要: Unbonded silicon oxynitride and silica high-performance liquid chromatography stationary phases have been evaluated and compared for the separation of basic compounds of differing molecular weight, pKa, and log D using aqueous/organic mobile phases. The influences of percentage of organic modifier, buffer pH, and concentration in the mobile phase on base retention were investigated on unbonded silicon oxynitride and silica phases. The results confirmed that unbonded silicon oxynitride and silica phases demonstrated excellent separation performance for model basic compounds and both the unbonded phases examined possessed a hydrophobic/adsorption and ion-exchange character. The silicon oxynitride stationary phase exhibited high hydrophilicity compared with silica with a reversed-phase mobile phase. An ion-exclusion-type mechanism becomes predominant for the separation of three aimed bases on the silicon oxynitride column at pH 2.8. Different from silicon oxynitride stationary phase, no obvious change for the retention time of three model bases on silica stationary phase at pH 2.8 can be observed.
关键词[WOS]: RETENTION ;  COLUMNS ;  SOLUTES ;  HPLC ;  NITRIDATION ;  OVERLOAD ;  MCM-41 ;  MODEL
语种: 英语
WOS记录号: WOS:000389045100002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/150416
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, Fac Chem Environm & Biol Sci & Technol, Analyt Ctr, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian, Peoples R China

Recommended Citation:
Wan, Huihui,Zhong, Hongmin,Xue, Xingya,et al. Separation behavior of basic compounds on unbonded silicon oxynitride and silica high-performance liquid chromatography stationary phases with reversed-phase eluents[J]. JOURNAL OF SEPARATION SCIENCE,2016,39(20):3860-3867.
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