Results 201 to 210 of about 225,444 (245)

A fluorescence detector for high-pressure liquid chromatography

Journal of Chromatography A, 1977
We describe a fluorescence spectrophotometer adapted with a micro quartz flow cell to record the output of modern liquid chromatographs. The optical system is double beam in that the light source variations are cancelled out by a second photomultiplier, thus enhancing the sensitivity of the technique. The emission spectra may be scanned by stopping the
W, Slavin, A T, Williams, R F, Adams
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Separation of cytokinins by High Pressure Liquid Chromatography

Planta, 1975
A number of cytokinin reference compounds have been successfully separated by High Pressure Liquid Chromatography using columns of pellicular strong cation exchange resin and of pellicular polyamide. On polyamide, all cytokinins were eluted within 10 min with an aqueous buffer but on the cation exchange resin some cytokinins (generally those with bulky
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High-pressured liquid chromatography of carotenoids

Journal of Chromatography A, 1978
Abstract The potential of high-pressure liquid chromatography (HPLC) for separation of carotenoids on silica has been studied with selected model carotenoids (carotenes, diols, cis—trans isomers and diastereoisomers) in comparison with conventional thin-layer chromatography and circular paper techniques.
Anne Fiksdahl, Julius T. Mortensen, Synnøve Liaaen-Jensen   +2 more
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Forensic aspects of high-pressure liquid chromatography

Journal of Chromatography A, 1976
This 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 liquid chromatography of androgens

Journal of Chromatography A, 1979
I R, Hunter, M K, Walden, E, Heftmann
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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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High-pressure liquid chromatography of corticosteroids

Journal of Chromatography A, 1973
J C, Touchstone, W, Wortmann
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Correlation analysis of injection parameters for low-medium pressure injection of liquid CO2 for CH4 displacement in coal seams

Energy, 2023
Hu Wen, Shixing Fan, Gaoming Wei
exaly  

Liquid‐Pressure‐Guided Superhydrophobic Surfaces with Adaptive Adhesion and Stability

Advanced Materials, 2022
Longquan Chen, Dehui Wang, Xu Deng
exaly  

Pressure Drop and Film Thickness of Liquid-Liquid Taylor Flow in Square Microchannels

International Journal of Heat and Mass Transfer, 2020
Ayoub Abdollahi, Stuart Norris, Rajnish N Sharma   +2 more
exaly