Results 331 to 340 of about 1,583,880 (361)

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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Pressurized solvent reservoir for high-pressure liquid chromatography [PDF]

Journal of Chemical Education, 1982
A pressurized solvent reservoir for high-pressure liquid chromatography that slightly pressurizes the mobile phase before entry into the pumping system and also filters the liquid at the same time.
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High Pressure Liquid Chromatography of Eicosanoids

1985
Arachidonic acid (20:4) and other polyunsaturated fatty acids can be oxygenated in many tissues by cyclooxygenase or a variety of lipoxygenases. The intermediates formed in these reactions are then converted enzymatically to a variety of other products.
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Analysis of vitamin A in eggs by high pressure liquid chromatography

Food / Nahrung, 1991
AbstractA high speed liquid chromatographic method was described for the rapid determination of vitamin A in eggs. After saponification and extraction, the sample was separated on a reversed‐phase column (C18) with acetonitrile ‐ methylene‐chloride ‐ methanol as the mobile phase. Quantitative determination was accomplished by monitoring the ultraviolet
Hisil Y., Ötles S.
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High-pressure liquid chromatography of androgens

Journal of Chromatography A, 1979
Erich Heftmann, Mayo K. Walden, Iriving R. Hunter   +2 more
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ChemInform Abstract: LIQUID‐LIQUID PARTITION COEFFICIENTS BY HIGH‐PRESSURE LIQUID CHROMATOGRAPHY

Chemischer Informationsdienst, 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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Packed column chromatography, high-resolution gas-chromatography and high pressure liquid chromatography in comparison for the analysis of cannabis constituents.

Forensic Science International, 1983
I. Barni Comparini, F. Centini
semanticscholar   +1 more source

High-pressure liquid chromatography of corticosteroids

Journal of Chromatography A, 1973
W. Wortmann, J.C. Touchstone
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Application of ultra-high pressure liquid chromatography linear ion-trap orbitrap to qualitative and quantitative assessment of pesticide residues.

Journal of Chromatography A, 2014
M. Farré, Y. Picó, D. Barceló
semanticscholar   +1 more source

Simultaneous determination of some phthalate metabolites, parabens and benzophenone-3 in urine by ultra high pressure liquid chromatography tandem mass spectrometry.

Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 2014
L. Dewalque, C. Pirard, N. Dubois, C. Charlier   +3 more
semanticscholar   +1 more source