scholarly journals Capillary electrophoresis applied for the determination of acidity constants and limiting electrophoretic mobilities of ionizable herbicides including glyphosate and its metabolites and for their simultaneous separation

2022 ◽  
Author(s):  
Hannes Georg Graf ◽  
Sonja Maria Biebl ◽  
Linda Müller ◽  
Christina Breitenstein ◽  
Carolin Huhn
Keyword(s):  
Capillary Electrophoresis ◽  
Acidity Constants ◽  
Electrophoretic Mobilities ◽  
Simultaneous Separation

Simultaneous Separation and Determination of Vanillin and O-Vanillin by CE Compared with HPLC

2011 ◽  
Vol 236-238 ◽  
pp. 2725-2728 ◽  
Author(s):  
Jin Guan ◽  
Feng Yan ◽  
Shuang Shi ◽  
Yun Li
Keyword(s):  
High Performance Liquid Chromatography ◽  
Capillary Electrophoresis ◽  
Liquid Chromatography ◽  
Applied Voltage ◽  
High Performance ◽  
Hydrogen Phosphate ◽  
Disodium Hydrogen Phosphate ◽  
Real Samples ◽  
Simultaneous Separation

A method for the simultaneous separation and determination of vanillin ando-vanillin by capillary electrophoresis (CE) was developed. The influence of type, concentration and pH of running buffer, and applied voltage on separation was investigated. Under the condition of 50 mmol/L borax-150 mmol/L disodium hydrogen phosphate (pH 7.5) and applied voltage of 15 kV, the vanillin ando-vanillin were separated in less than 6 min. The method was validated in terms of accuracy, precision and linearity and proved to be robust. This CE method is comparable with high performance liquid chromatography (HPLC). This CE method is applicable to the quantitative analysis of Vanillin ando-vanillin in real samples, and the assay results were satisfactory

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