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Properties and applications of mixed packing capillary electrochromatography
Zhang, LH; Zhang, YK; Shi, W; Zou, HF
关键词Capillary Electrochromatography Mixed Packing Technique Electroosmotic Flow Retention Mechanism Fast Analysis
刊名HRC-JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY
1999-12-01
22期:12页:666-670
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Analytical
研究领域[WOS]Chemistry
关键词[WOS]LIQUID-CHROMATOGRAPHY ; STATIONARY-PHASE ; SEPARATION
英文摘要Mixed packing capillary electrochromatography (MP CEC) with the stationary phase comprising a physical mixture of strong cation exchange (SCX) phase and octadecpilyl (ODS) phase was developed. With the existence of a sulfonic acid group on the surface of SCX, not only could the electroosmotic flow (EOF) remain high at low pH, but also the hydrophilicity of the stationary phase was increased greatly, leading to broad adaptable ranges of both pH and organic modifier concentration in the mobile phase. At the same time, with the coexistence of C-18 on the surface of ODS, both the retention and the resolution of samples vr ere improved. Accordingly, MP CEC combined the advantages of both SCS and ODS columns. Effects of operation parameters on EOF and the capacity factors of solutes as well as the retention mechanism of such a column were studied systematically. In addition, MP CEC columns were used in the analysis of strong polar solutes as well as for the high speed separation of acidic, basic, and neutral compounds in a single fun.
语种英语
WOS记录号WOS:000084494100003
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/138209
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog R&A Ctr, Dalian 116011, Peoples R China
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GB/T 7714
Zhang, LH,Zhang, YK,Shi, W,et al. Properties and applications of mixed packing capillary electrochromatography[J]. HRC-JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY,1999,22(12):666-670.
APA Zhang, LH,Zhang, YK,Shi, W,&Zou, HF.(1999).Properties and applications of mixed packing capillary electrochromatography.HRC-JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY,22(12),666-670.
MLA Zhang, LH,et al."Properties and applications of mixed packing capillary electrochromatography".HRC-JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY 22.12(1999):666-670.
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