Results 21 to 30 of about 4,191,571 (369)

Basic Gas Chromatography

open access: yes, 2019
PREFACE TO THE SECOND EDITION. PREFACE. ACKNOWLEDGMENTS. 1 INTRODUCTION. A Brief History. Definitions. Overview: Advantages and Disadvantages. Instrumentation. References. 2 INSTRUMENT OVERVIEW. Carrier Gas. Flow Control and Measurement.
H. Mcnair, James M. Miller
semanticscholar   +1 more source

Micro Gas Chromatography: An Overview of Critical Components and Their Integration.

open access: yesAnalytical Chemistry, 2018
Among a number of gas analyzers, portable gas chromatography (GC) systems created by the integration of microfabricated components are promising candidates for rapid and on-site analysis of a number of complex chemical mixtures.
Bishnu P. Regmi, M. Agah
semanticscholar   +1 more source

Flow Rates in Liquid Chromatography, Gas Chromatography and Supercritical Fluid Chromatography: A Tool for Optimization

open access: yesJournal of Open Research Software, 2016
This paper aimed to develop a standalone application for optimizing flow rates in liquid chromatography (LC), gas chromatography (GC) and supercritical fluid chromatography (SFC). To do so, Van Deemter’s equation, Knox’ equation and Golay’s equation were
Joris Meurs
doaj   +1 more source

Blood-Based Lipidomics Approach to Evaluate Biomarkers Associated With Response to Olanzapine, Risperidone, and Quetiapine Treatment in Schizophrenia Patients

open access: yesFrontiers in Psychiatry, 2018
This is the first study to identify lipidomic markers in plasma associated with response of acutely ill schizophrenia patients in response to specific antipsychotic treatments.
Adriano Aquino   +10 more
doaj   +1 more source

BARCHAN: Blob Alignment for Robust CHromatographic ANalysis [PDF]

open access: yesJournal of Chromatography A, Volume 1484, February 2017, Pages 65-72, 2017
Comprehensive Two dimensional gas chromatography (GCxGC) plays a central role into the elucidation of complex samples. The automation of the identification of peak areas is of prime interest to obtain a fast and repeatable analysis of chromatograms.
arxiv   +1 more source

The structure of O-polysaccharide isolated from Cronobacter universalis NCTC 9529T [PDF]

open access: yes, 2014
The O-polysaccharide (OPS) was isolated from Cronobacter universalis NCTC 9529T, a new species in the genus Cronobacter, which was created by the reclassification of the species Enterobacter sakazakii.
Arbatsky   +24 more
core   +1 more source

HD gas analysis with Gas Chromatography and Quadrupole Mass Spectrometer [PDF]

open access: yes, 2011
A gas analyzer system has been developed to analyze Hydrogen-Deuteride (HD) gas for producing frozen-spin polarized HD targets, which are used for hadron photoproduction experiments at SPring-8. Small amounts of ortho-H$_{2}$ and para-D$_{2}$ gas mixtures ($\sim$0.01%) in the purified HD gas are a key to realize a frozen-spin polarized target. In order
arxiv   +1 more source

On-line monitoring of the transesterification reaction carried out in microreactors using near infrared spectroscopy [PDF]

open access: yes, 2013
Biodiesel can be produced from vegetable oils, animal fats, and waste cooking oils by transesterification with ethanol (also called ethanolysis) in order to substitute fossil fuels.
Dubreuil, Brigitte   +3 more
core   +2 more sources

La chromatographie en phase gazeuse et l’étude des goudrons

open access: yesCHIMIA, 1961
Analysis by gas chromatography of the heavy fractions of coal tar calls for working temperatures up to 400 °C. A method is described to execute gas chromatography at such high temperatures and the interpretation of the diagrams obtained is discussed. By
P. Ferrero
doaj   +1 more source

Pulse height measurements and electron attachment in drift chambers operated with Xe,CO2 mixtures [PDF]

open access: yesNucl.Instrum.Meth.A498:143-154,2003, 2003
We present pulse height measurements in drift chambers operated with Xe,CO2 gas mixtures. We investigate the attachment of primary electrons on oxygen and SF6 contaminants in the detection gas. The measurements are compared with simulations of properties of drifting electrons. We present two methods to check the gas quality: gas chromatography and Fe55
arxiv   +1 more source

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