Results 21 to 30 of about 722,813 (296)

Arsenosugar phospholipids and arsenic hydrocarbons in two species of brown macroalgae [PDF]

open access: yes, 2012
Fourteen arsenolipids, including 11 new compounds, were identified and quantified in two species of brown algae, Wakame (Undaria pinnatifida) and Hijiki (Hizikia fusiformis), by high resolution mass spectrometry, high performance liquid chromatography ...
Francesconi, Kevin A.   +4 more
core   +2 more sources

Fast liquid chromatography/electrochemistry/mass spectrometry of ferrocenecarboxylic acid esters [PDF]

open access: yes, 2002
Rapid liquid chromatographic separations of ferrocenecarboxylic esters of various alcohols and phenols have been achieved on reversed-phase columns of 20 mm length.
Diehl, Georg, Karst, Uwe
core   +3 more sources

An R package to analyse LC/MS metabolomic data: MAIT (Metabolite Automatic Identification Toolkit) [PDF]

open access: yes, 2017
Current tools for liquid chromatography and mass spectrometry for metabolomic data cover a limited number of processing steps, whereas online tools are hard to use in a programmable fashion. This article introduces the Metabolite Automatic Identification
Andrés Lacueva, Ma. Cristina   +3 more
core   +1 more source

Putative multiple reaction monitoring strategy for the comparative pharmacokinetics of postoral administration Renshen–Yuanzhi compatibility through liquid chromatography–tandem mass spectrometry

open access: yesJournal of Ginseng Research, 2020
Background: Exploring the pharmacokinetic (PK) changes of various active components of single herbs and their combinations is necessary to elucidate the compatibility mechanism.
Yufei Sun   +7 more
doaj   +1 more source

Gas-liquid chromatography-mass spectrometry of synthetic ceramides

open access: yesJournal of Lipid Research, 1969
Two series of ceramides with either sphingosine (sphing-4-enine) or sphinganine as base and with one of the saturated fatty acids C16, C18, C20, C22, C24, C26, or oleic acid were analyzed as the 1,3-di-O-trimethylsilyl ether derivatives by gas ...
Bengt Samuelsson, Karin Samuelsson
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

Current developments in LC-MS for pharmaceutical analysis [PDF]

open access: yes, 2002
The current developments in liquid chromatography-mass spectrometry (LC-MS) and its applications to the analysis of pharmaceuticals are reviewed. Various mass spectrometric techniques, including electrospray and nanospray ionization, atmospheric pressure
Lim, Chang-Kee, Lord, Gwyn A.
core   +1 more source

High-Throughput Quantitation of Cannabinoids by Liquid Chromatography Triple-Quadrupole Mass Spectrometry

open access: yesMolecules, 2022
The high-throughput quantitation of cannabinoids is important for the cannabis industry. As medicinal products increase, and research into compounds that have pharmacological benefits increase, and the need to quantitate more than just the main ...
Jonathan Tran   +3 more
doaj   +1 more source

Metabolomics-Based Identification of Bleached Shellac in Liquid Fruit Wax [PDF]

open access: yesShipin Kexue, 2023
The purpose of this study was to identify whether liquid fruit waxes could be added with bleached shellac. The compounds of bleached shellac from different sources were analyzed by targeted metabolomics based on liquid chromatography-quadrupole time-of ...
LI Kun, ZHANG Wenwen, TANG Baoshan, XING Shujie, MA Jinju, ZHU Jing, LEI Fuhou, ZHANG Hong
doaj   +1 more source

Generic sample preparation combined with high-resolution liquid chromatography- time-of-flight mass spectrometry for unification of urine screening in doping-control laboratories [PDF]

open access: yes, 2010
A unification of doping-control screening procedures of prohibited small molecule substances—including stimulants, narcotics, steroids, ß2-agonists and diuretics—is highly urgent in order to free resources for new classes such as banned proteins ...
Georgakopoulos, C.G.   +4 more
core   +3 more sources

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