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Investigation of the effect of pressure on retention of small molecules using reversed-phase ultra-high-pressure liquid chromatography (2008)
Journal Article
Fallas, M. M., Neue, U. D., Hadley, M. R., & McCalley, D. V. (2008). Investigation of the effect of pressure on retention of small molecules using reversed-phase ultra-high-pressure liquid chromatography. Journal of Chromatography A, 1209(1-2), 195-205. https://doi.org/10.1016/j.chroma.2008.09.021

The effect of inlet pressure on the retention of a series of low molecular weight acids, bases and neutrals, was investigated at constant temperature in reversed-phase liquid chromatography using a commercial ultra-high-pressure system (Waters UPLC i... Read More about Investigation of the effect of pressure on retention of small molecules using reversed-phase ultra-high-pressure liquid chromatography.

Evaluation of the properties of a superficially porous silica stationary phase in hydrophilic interaction chromatography (2008)
Journal Article
McCalley, D. V. (2008). Evaluation of the properties of a superficially porous silica stationary phase in hydrophilic interaction chromatography. Journal of Chromatography A, 1193(1-2), 85-91. https://doi.org/10.1016/j.chroma.2008.04.007

The sample capacity, column efficiency (and its variation with flow) of a superficially porous unbonded silica phase (Halo) was investigated using hydrophilic interaction chromatography (HILIC), particularly for separation of basic compounds. Sample... Read More about Evaluation of the properties of a superficially porous silica stationary phase in hydrophilic interaction chromatography.

Estimation of the extent of the water-rich layer associated with the silica surface in hydrophilic interaction chromatography (2008)
Journal Article
McCalley, D. V., & Neue, U. D. (2008). Estimation of the extent of the water-rich layer associated with the silica surface in hydrophilic interaction chromatography. Journal of Chromatography A, 1192(2), 225-229. https://doi.org/10.1016/j.chroma.2008.03.049

The possible presence of a mobile phase layer rich in water on the surface of silica columns used under conditions typical in hydrophilic interaction chromatography was investigated by the injection of a small hydrophobic solute (benzene) using aceto... Read More about Estimation of the extent of the water-rich layer associated with the silica surface in hydrophilic interaction chromatography.

Analysis of basic compounds by reversed-phase high-performance liquid chromatography using hybrid inorganic/organic phases at high pH (2008)
Journal Article
Davies, N. H., Euerby, M. R., & McCalley, D. V. (2008). Analysis of basic compounds by reversed-phase high-performance liquid chromatography using hybrid inorganic/organic phases at high pH. Journal of Chromatography A, 1178(1-2), 71-78. https://doi.org/10.1016/j.chroma.2007.11.040

The retention and mass overload of five bases and a quaternary ammonium compound were studied on a bridged ethyl hybrid inorganic/organic phase (XBridge C18) over a pH range 2.7-12.0 using acetonitrile-phosphate and carbonate buffers. Some comparison... Read More about Analysis of basic compounds by reversed-phase high-performance liquid chromatography using hybrid inorganic/organic phases at high pH.