Results 211 to 220 of about 13,156 (264)
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Liquid-liquid partition coefficients by high-pressure liquid chromatography
Journal of Medicinal Chemistry, 1975Lipid-water partition values can be rapidly and reliably measured by high-pressure liquid chromatography (HPLC) on bonded octadecylsialne supports. This method has been developed and applied to a family of hypotensive triaminopyrimidine 3-oxides. The measured column retention values for this class of compounds correlate well with the values calculated ...
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High-pressure liquid chromatographic analysis of novobiocin
Journal of Chromatography A, 1974A high-pressure liquid chromatographic method for the analysis of novobiocin is described. The method uses a 1 -m-long Zipax HCP column with a mobile phase of 15% methanol in 0.02 M phosphate buffer, pH 7.0, at a flow-rate of 0.85 ml/min (68 atm).
K, Tsuji, J H, Robertson
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Laboratory Automation of High‐Pressure Liquid Chromatography
Journal of Pharmaceutical Sciences, 1975An automated system for high-pressure liquid chromatography was developed. The system is built around commercial modules wherever possible, modified to varying degrees. An automatic sampler, a sample pump, a high-pressure sampling valve, a recorder with an integrator, and a high-pressure liquid chromatograph comprise the commercial instruments. Relays,
W F, Beyer, D D, Gleason
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Thimerosal Determination by High-Pressure Liquid Chromatography
Journal of Pharmaceutical Sciences, 1978A sensitive and useful high-pressure liquid chromatographic method for the determination of intact thimerosal was developed. This method is extremely fast and reliable, and its inherent specificity makes it a breakthrough over other common wet chemical methods.
R C, Meyer, L B, Cohn
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Effects of high pressure in liquid chromatography
Journal of Chromatography A, 2005All the experimental parameters that the chromatographers are used to consider as constant (the column length and its diameter, the particle size, the column porosities, the phase ratio, the column hold-up volume, the pressure gradient along the column, the mobile phase density and its viscosity, the diffusion coefficients, the equilibrium constants ...
Martin, Michel, Guiochon, Georges
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Forensic aspects of high-pressure liquid chromatography
Journal of Chromatography A, 1976This paper reviews the applications of high-pressure liquid chromatography (HPLC) to forensic problems, and discusses some of the developments that have taken place in the use of the technique in the Metropolitan Police Laboratory. Preparation of octadecyltrichlorosilane-modified silica is described and some of the chromatographic characteristics of ...
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High Pressure Vapor-Liquid Equilibrium
1993We saw in the previous Chapter, Section 13.4, that high pressure vapor-liquid equilibrium (VLE) involves systems where some, or all, components have low boiling point temperatures at atmospheric pressure, typically mixtures of hydrocarbons — alone or with some inorganic gases: N2, CO2, CO, etc.
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High-pressure liquid chromatography of androgens
Journal of Chromatography A, 1979I R, Hunter, M K, Walden, E, Heftmann
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