Results 31 to 40 of about 462,107 (360)

High pressure liquid chromatography of benzimidazolcs

open access: yesPesticide Science, 1976
AbstractA laboratory‐assembled high pressure liquid chromatograph with variable wavelength ultraviolet detector is described. The chromatography of the systemic fungicides benomyl, thiabendazole, thiophanate, related fungicides and benzimidazoles (13 compounds in all) is described using reverse phase and adsorption systems.
Austin, D. J.   +2 more
openaire   +1 more source

Evidence of late Quaternary environmental change in a continental east Antarctic lake from lacustrine sedimentary pigment distributions [PDF]

open access: yes, 2005
A sediment core from Progress Lake, one of the oldest lacustrine sequences in East Antarctica, contains distinct zones dating from a previous interglacial (most likely Marine Isotope Stage 5e, c.
Hodgson, D A, Keely, B J, Squier, A H
core   +2 more sources

Effects of ropivacaine combined with morphine at 0.15 and 0.2 mg kg-1 in bitches undergoing epidural anesthesia [PDF]

open access: yesActa Cirúrgica Brasileira, 2015
PURPOSE: To investigate cardiorespiratory effects and serum concentration of ropivacaine combined with morphine at different doses.METHODS: Sixteen healthy adult female dogs weighting 9.8±4.1 kg were included in the study.
Verônica Batista de Albuquerque   +6 more
doaj   +2 more sources

Liquid–liquid equilibrium for ethanolysis systems of fish oil [PDF]

open access: yes, 2013
Enzymatic alcoholysis of fish oil can produce monoacylglycerols rich in polyunsaturated fatty acids at atmospheric pressure and low temperature. Biocatalysis in organic solvents helps to create a homogeneous reaction system for the reactants, ethanol and
Beltrán Calvo, Sagrario   +4 more
core   +1 more source

Sterol synthesis. High-pressure liquid chromatography of C27 sterol precursors of cholesterol.

open access: yesJournal of Lipid Research, 1979
Conditions have been described which permit the rapid (approximately 3.5 hr) column chromatographic separation of the acetate derivatives of a number of C27 sterol precursors of cholesterol differing only in the number and position of double bonds in the
J R Thowsen, G J Schroepfer, Jr
doaj   +1 more source

Taxonomic study and partial characterization of antimicrobial compounds from a moderately halophilic strain of the genus Actinoalloteichus [PDF]

open access: yes, 2011
A moderately halophilic actinomycete strain designated AH97 was isolated from a saline Saharan soil, and selected for its antimicrobial activities against bacteria and fungi.
Boudjelal, Farida   +4 more
core   +3 more sources

Recent developments in the rapid analysis of plants and tracking their bioactive constituents [PDF]

open access: yes, 2009
Natural products chemistry has witnessed many new developments in the last 5 years like extractions with subcritical water and ionic liquids, LC/HRMS and LC/SPE/cryo-NMR, UHPLC, TLC/MS, MS-based preparative HPLC, comprehensive chromatography (GC × GC, LC
Beek, T.A., van   +7 more
core   +2 more sources

Medium- and High-Pressure Integrated Chromatographic Strategies for the Isolation and Purification of Free Radical Inhibitors from Dracocephalum heterophyllum

open access: yesSeparations, 2022
Dracocephalum heterophyllum has been reported as a traditional Tibetan medicine with diverse therapeutic benefits for the effective treatment of various diseases.
Yue Lv, Ze Wang, Qilan Wang, Jun Dang
doaj   +1 more source

Quantification of voriconazole in plasma by liquid chromatography-tandem mass spectrometry [PDF]

open access: yes, 2005
A convenient liquid chromatography-tandem mass spectrometry method for the quantification of the triazole antifungal agent voriconazole in plasma samples is described. Fenbuconazole is used as an internal standard.
Boyd   +16 more
core   +1 more source

ADVANCING THE SEPARATION SCIENCES THROUGH THE DELIVERY OF NEW MATERIALS, TECHNOLOGY AND METHODOLOGY. [PDF]

open access: yes, 2013
A thesis and collection of works submitted to Plymouth University in partial fulfilment for the degree of DOCTOR OF ...
Paull, Brett
core   +2 more sources

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