Results 111 to 120 of about 1,553,597 (362)
The use of electrochemical detectors for high pressure liquid chromatography [PDF]
, 1974 Imperial Users ...
Little, Christopher John +1 more
core
High-Pressure Liquid Chromatography of Caffeine in Coffee
Journal of AOAC INTERNATIONAL, 1976 Abstract A new method is described for the determination of caffeine in coffee, based on high-pressure liquid chromatography. The caffeine is extracted from the sample with water and/or methylene chloride, and then separated from interfering materials by passing an aliquot of the extract through a high-pressure column containing ...
Bryan L Madison +2 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du +4 more
wiley +1 more source
Chemical and toxicological analysis of zolpidem
RUDN Journal of Medicine, 2009 Methods for measuring zolpidem are suggested: thin-layer chromatography, high-pressure liquid chromatography, ultrtaviolet spectrophotometry, gas chromatography with mass selective detector can be used for identification zolpidem in chemical ...
Y A Khomov +3 more
doaj
Chinese Journal of Contemporary Neurology and Neurosurgery, 2018 Objective To investigate the value of blood concentration monitoring of 10-monohydroxy carbamazepine (MHD), the active metabolite of oxcarbazepine (OXC), in the treatment ofchildhood focal epilepsy.
Pei-yuan ZHANG +4 more
doaj +1 more source
Strong Stability with respect to weak limit for a Hyperbolic System arising from Gas Chromatography [PDF]
arXiv, 2009 We investigate a system related to a particular isothermal gas-solid chromatography process, called ?Pressure Swing Adsorption?, with two species and instantaneous exchange kinetics. This system presents the particularity to have a linearly degenerate eigenvalue: this allows the velocity of the gaseous mixture to propagate high frequency waves. In case
arxiv
Liquid chromatography-tandem mass spectrometry - Application in the clinical laboratory [PDF]
, 2003 This review provides a concise survey of liquid chromatography tandem mass spectrometry (LCTMS) as an emerging technology in clinical chemistry. The combination of two mass spectrometers with an interposed collision cell characterizes LCTMS as an ...
Ford RE +7 more
core +1 more source
Advanced Functional Materials, EarlyView.This work presents an overview of the PTC‐VMD system for water‐hydrogen co‐generation. a) Illustration of the hydrogel‐based PTC membrane and the co‐generation of water and hydrogen. b) Structure of the PTC‐VMD system and the functions of each component layer.
Jiawei Sun +7 more
wiley +1 more source
In vivo and In vitro Estimation of Colchicine in Gloriosa superba L. by High Pressure Liquid Chromatography [PDF]
, 2010 The presence of Colchicine in Gloriosa superba was confirmed by Thin Layer Chromatography (TLC) and High Pressure Liquid Chromatography (HPLC) in which a spot coinciding with the authentic sample of Cochicine in Rf value (Colchicine 0.70) appeared.
Ajit Kumar, Renu Sarin*, Anirudha Rishi and
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Pharmacological evaluation polysaccharide complex flowers tansy [PDF]
, 2016 From flowers tansy extracted polysaccharide complex. Installed its qualitative and quantitative composition, have developed a technique standardizing the content of reducing sugars.
Engalycheva, E. E. +3 more
core +2 more sources