CHE SIGNIFICA GAS CHROMATOGRAPHY IN INGLESE
Gas cromatografia
La cromatografia a gas è un comune tipo di cromatografia usata nella chimica analitica per la separazione e l'analisi di composti che possono essere vaporizzati senza decomposizione. Gli usi tipici di GC includono testare la purezza di una sostanza particolare o separare i diversi componenti di una miscela. In alcune situazioni, GC può aiutare nell'identificazione di un composto. In cromatografia preparativa, GC può essere utilizzato per preparare composti puri da una miscela. Nella cromatografia a gas, la fase mobile è un gas portante, di solito un gas inerte come elio o un gas non reattivo come l'azoto. La fase stazionaria è uno strato microscopico di liquido o polimero su un supporto solido inerte, all'interno di un pezzo di vetro o tubo metallico chiamato colonna. Lo strumento utilizzato per eseguire la cromatografia a gas è chiamato gas cromatografo. I composti gassosi in fase di analisi interagiscono con le pareti della colonna, rivestita con una fase stazionaria. Ciò provoca l'eluizione di ciascun composto in un tempo diverso, noto come tempo di ritenzione del composto. Il confronto dei tempi di ritenzione è quello che dà a GC la sua utilità analitica.
definizione di gas chromatography nel dizionario inglese
La definizione di gascromatografia nel dizionario è una tecnica per analizzare una miscela di sostanze volatili in cui la miscela è trasportata da un gas inerte attraverso una colonna imballata con un adsorbente selettivo e un rilevatore registra su una striscia mobile la conduttività del gas che parte il tubo. I picchi sul grafico risultante indicano la presenza di un particolare componente chiamato anche: cromatografia gas-liquido.
PAROLE IN INGLESE ASSOCIATE CON «GAS CHROMATOGRAPHY»
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10 LIBRI IN INGLESE ASSOCIATI CON «GAS CHROMATOGRAPHY»
Scopri l'uso di
gas chromatography nella seguente selezione bibliografica. Libri associati con
gas chromatography e piccoli estratti per contestualizzare il loro uso nella letteratura.
1
Modern Practice of
Gas Chromatography
This new Fourth Edition incorporates the most recent developments in the field, including entirely new chapters on gas chromatography/mass spectrometry (GC/MS); optimization of separations and computer assistance; high speed or fast gas ...
Robert L. Grob, PhD, Eugene F. Barry, PhD,
2004
2
Static Headspace-
Gas Chromatography: Theory and Practice
The Second Edition has been thoroughly updated to reflect the most recent developments and practices, and also includes coverage of solid-phase microextraction (SPME) and the purge-and-trap technique.
Bruno Kolb, Leslie S. Ettre,
2006
3
Gas chromatography: a practical approach
Bringing together a wide range of areas for which gas chromatography is a valuable tool, this volume will be indispensable for scientists and clinicians in fields ranging from environmental science to medicine.
This book looks at gas chromatography, the most widely used technique in analytical chemistry.
5
Basic
Gas Chromatography
The New Edition of the Well-Regarded Handbook on Gas Chromatography Since the publication of the highly successful first edition of Basic Gas Chromatography, the practice of chromatography has undergone several notable developments.
Harold M. McNair, James M. Miller,
2011
Gas Chromatography provides a contemporary picture of the field, including fundamentals and practical applications, in a single source.
7
Gas Chromatography and Mass Spectrometry: A Practical Guide: ...
The second edition of Gas Chromatography and Mass Spectrometry: A Practical Guide follows the highly successful first edition by F.G. Kitson, B.S. Larsen, and C.N. McEwen (1996), which was designed as an indispensible resource for GC/MS ...
O. David Sparkman, Zelda Penton, Fulton G. Kitson,
2011
8
DETECTORS IN
GAS CHROMATOGRAPHY
DETECTORS IN GAS CHROMATOGRAPHY
9
Gas Chromatography in Air Pollution Analysis
This book provides a systematic description of the main stages of air pollution determination, ranging from sampling problems to the quantitative estimation of the acquired data.
V.G. Berezkin, Yu.S. Drugov,
1991
10
Gas chromatography: a practical course
A special chapter shows and explains in detail 40 chromatograms. Thus the book can also be used for practical courses.
10 NOTIZIE DOVE SI INCLUDE IL TERMINE «GAS CHROMATOGRAPHY»
Vedi di che si parla nei media nazionali e internazionali e come viene utilizzato il termine ino
gas chromatography nel contesto delle seguenti notizie.
North American Gas Chromatography Market by Segments, by End …
NEW YORK, July 9, 2015 /PRNewswire/ -- The North America gas chromatography market is estimated to grow at a CAGR of 7.1% from 2014 to 2019. «PR Newswire, lug 15»
Thermo Fisher's Q Exactive system combines GC-MS and HRAM …
“Now, we are unlocking the power of Orbitrap technology for gas chromatography, providing GC-MS users with high resolving power and mass ... «gasworld, lug 15»
Now, an e-nose to rate jasmine fragrance
The analysis was (and is still being) done using GCMS (Gas Chromatography and Mass Spectrography) instruments. This not only requires ... «Hindu Business Line, lug 15»
Position Title: Chemist II - Alcohol Testing
•Skilled in the use of laboratory instruments; Gas Chromatography, High Pressure Liquid Chromatography, Chemical Hoods, Density Reader, ... «Police News, lug 15»
Metabolomics for Rheumatic Diseases: Has the Time Come?
... only introduced in the early 1970s when metabolite characterisation entered into the era of gas chromatography coupled to mass spectrometry technology. «Medscape, lug 15»
Characterizing Green Leaf Tobacco Extracts Using Gas …
Characterizing Green Leaf Tobacco Extracts Using Gas Chromatography High Resolution Time-of-Flight Mass Spectrometry (GC-HRT). «Azom.com, lug 15»
Cutting back on the calculations: A new method for predicting …
In gas chromatography, there is a well-known differential equation for predicting retention time, incorporating values for the flow of the mobile ... «separationsNOW.com, lug 15»
Universal detection in high performance liquid chromatography
In parallel, gas chromatography/flame ionisation detection (GC/FID) has been used as a universal detector for the more volatile analytes. «European Pharmaceutical Review, lug 15»
My Story: Physician Perspective on Urine Drug Testing
Molecular analysis – with any other following easy to pronounce technologies: Gas chromatography/mass spectrometry (GC/MS); liquid ... «National Pain Report, lug 15»
Does Your Child's Safety Seat Contain Toxic Chemicals …
The study involved testing 15 different brands of car seat using the scientific technique of gas chromatography with mass spectrometry (GC-MS) ... «Chromatography Today, giu 15»