Results 241 to 250 of about 17,657,684 (289)

Liquid densities at high pressures

Fluid Phase Equilibria, 1999
Abstract Aalto et al. recently proposed a model for compressed liquid densities. The model was found more accurate than the Hankinson–Brobst–Thomson (HBT) and Chang–Zhao models. However, the pressure region of the data studied was limited to 200 bar maximum. In this work, the recently developed liquid density model is extended to high pressures.
Mika M Aalto, Kari I Keskinen
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High pressure vapour-liquid equilibrium. III

Fluid Phase Equilibria, 1977
Abstract Wichterle, I., 1978. High pressure vapour-liquid equilibrium. II. Phenomenological description. Part 2. Fluid Phase Equilibria, 1: 225–245. A phenomenological description of fluid systems (except for l-g phase equilibrium) is presented.
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Liquid-liquid partition coefficients by high-pressure liquid chromatography

Journal of Medicinal Chemistry, 1975
Lipid-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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Thimerosal Determination by High-Pressure Liquid Chromatography

Journal of Pharmaceutical Sciences, 1978
A 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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The viscosity of liquids at high pressures

Australian Journal of Chemistry, 1981
An equation is presented which represents the variation of viscosity of a liquid with pressure in terms of the compressibility (ßT), thermal expansion (a) and molar volume (V) of the liquid (?In ?/?P)T = ßT+(Va/2.45R) The derivation of the equation from an equation developed by Eyring and coworkers is given and the ...
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Analysis of leukotrienes by high-pressure liquid chromatography

Analytical Biochemistry, 1981
Abstract A reversed-phase high-pressure liquid chromatographic procedure has been developed to separate and quantitate leukotrienes. This procedure is based on the ultraviolet absorption of the conjugated triene moiety of these compounds and is sensitive to the nanogram level.
W R, Mathews, J, Rokach, R C, Murphy
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Laboratory Automation of High‐Pressure Liquid Chromatography

Journal of Pharmaceutical Sciences, 1975
An 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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High-pressure liquid chromatographic analysis of novobiocin

Journal of Chromatography A, 1974
A 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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Calculation of Vapor–Liquid–Liquid Equilibria at Atmospheric and High Pressures

Industrial & Engineering Chemistry Research, 2014
Numerical values of the NRTL equation parameters for calculation of the vapor–liquid–liquid equilibria (VLLE) at atmospheric pressures for 27 ternary mixtures are presented. These values were fitted to the experimental VLLE and vapor–liquid equilibrium (VLE) data to describe simultaneously, as accurately as possible, VLE and liquid–liquid equilibria ...
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High-pressure liquid chromatography of androgens

Journal of Chromatography A, 1979
I R, Hunter, M K, Walden, E, Heftmann
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