Capillary Gas Chromatographic Separation of Carboxylic Acids Using an Acidic Water Stationary Phase
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DOI: 10.1007/s10337-017-3333-z
Abstract: An acidic water stationary phase is used for the analysis of carboxylic acids in capillary gas chromatography (GC). Under regular pH 7 operating conditions, these analytes are largely ionized and elute poorly, if at all,… read more here.
Keywords: phase; stationary phase; water; carboxylic acids ... See more keywords
Dehydration of a Water Stationary Phase as a Novel Separation Gradient in Capillary Supercritical Fluid Chromatography
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DOI: 10.1007/s10337-019-03735-8
Abstract: A novel alternative to gradient elution in capillary supercritical fluid chromatography (SFC) based upon the systematic removal of a water stationary phase from the column, using a pure CO2 mobile phase, is introduced. By adjusting… read more here.
Keywords: phase; capillary supercritical; stationary phase; supercritical fluid ... See more keywords
Retention Characteristics of a pH Tunable Water Stationary Phase in Supercritical Fluid Chromatography.
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DOI: 10.1093/chromsci/bmw153
Abstract: The retention characteristics of a novel pH tunable water stationary phase are presented. The method utilizes a change in mobile phase from N2 to CO2 to acidify the water phase in situ and control the… read more here.
Keywords: phase; tunable water; stationary phase; water stationary ... See more keywords
Adjustable column length using a water stationary phase in supercritical fluid chromatography
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DOI: 10.1139/cjc-2019-0157
Abstract: A novel method for adjusting the column length during analysis in capillary supercritical fluid chromatography (SFC) is introduced. The approach is based on using a water stationary phase that can be partially ejected (or replenished)… read more here.
Keywords: column; column length; stationary phase; water stationary ... See more keywords