QUE SIGNIFIE QUADRUPOLE EN ANGLAIS
Quadrupôle
Un quadrupôle ou quadrapole est l'une d'une séquence de configurations, par exemple, de charge ou de courant électrique, ou de masse gravitationnelle qui peut exister sous une forme idéale, mais elle est habituellement juste une partie d'une expansion multipolaire d'une structure plus complexe reflétant divers ordres de complexité.
définition de quadrupole dans le dictionnaire anglais
La définition du quadrupôle dans le dictionnaire est un ensemble de quatre charges électriques positives et négatives associées ou de deux dipôles magnétiques associés.
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10 LIVRES EN ANGLAIS EN RAPPORT AVEC «QUADRUPOLE»
Découvrez l'usage de
quadrupole dans la sélection bibliographique suivante. Des livres en rapport avec
quadrupole et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
Quadrupole Ion Trap Mass Spectrometry
A definitive reference, completely updated Published in 1989, the First Edition of this book, originally entitled Quadrupole Storage Mass Spectrometry, quickly became the definitive reference in analytical laboratories worldwide.
Raymond E. March, John F. Todd,
2005
2
Quadrupole Storage Mass Spectrometry
This book is a necessary addition to professional and university chemistry libraries and is required reading for analytical chemists, toxicologists, and students in those fields.
Raymond E. March, John F. J. Todd,
1989
3
A method for the calculation of large numbers of dipole and ...
A computer program is presented which selects allowed transitions and calculates dipole and quadrupole transition probabilities for transitions with LS coupling and no equivalent electrons, based on an extension of the Coulomb approximation ...
Lawrence P. Shomo, United States. National Aeronautics and Space Administration, Langley Research Center,
1970
4
The Theory of the Electromagnetic Field
Consider a linear quadrupole consisting of a point charge of strength 2q at the
origin and point charges of strength —q at (0, 0, a) and (0, 0, —a). Show that the
monopole and dipole moments of this distribution are zero, calculate the
elements ...
5
Nuclear
quadrupole resonance spectroscopy data
Volume III/31 continues the compilation of nuclear quadrupole resonance spectroscopy data of solid substances which started in with volume III/20 in1987 covering the literature from the beginning of nuclear quadrupole resonance spectroscopy ...
H. Chihara, Nabuo Nakamura, Karl-Heinz Hellwege,
1993
6
Introduction to Spectroscopy
6.5 PROTONS ON NITROGEN: QUADRUPOLE BROADENING AND
DECOUPLING Elements that have I= 12 have approximately spherical
distributions of charge within their nuclei. Those that have I > 12 have
ellipsoidal distributions of ...
Donald Pavia, Gary Lampman, George Kriz,
2008
7
Mass Spectrometry Basics
To give ions this forward momentum, they are often accelerated through a
potential of about 5 V, maintained between the ion source and the quadrupole.
Sometimes sufficient momentum arises naturally from space-charge effects from
...
Christopher G. Herbert, Robert A.W. Johnstone,
2002
The far-field pressure of a longitudinal quadrupole has directivity cos2 & and
decays inversely with distance from the source. In the near field the pressure
varies with the inverse cube of distance from the source and has directivity I - 3
cos2 8.
9
Handbook of Charged Particle Optics, Second Edition
The x-directional beam has a focus at the second quadrupole. The beam has an
elongated shape in the y-direction at this plane. The second quadrupole lens has
a focusing action in the x-direction and forms a focus at the third quadrupole.
10
Mass Spectrometry: Principles and Applications
Type Focusing power Mass range for simultaneous transmission of ions
Quadrupole High Narrow Hexapole Octapole Low Wide by the quadrupole
quickly increases when the ion leaves the axis, while the octapole has a softer
potential ...
Edmond de Hoffmann, Vincent Stroobant,
2007
10 ACTUALITÉS CONTENANT LE TERME «QUADRUPOLE»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
quadrupole est employé dans le contexte des actualités suivantes.
Agilent Technologies Launches Its Most Robust Triple Quadrupole …
Engineered to be the company's most robust triple quadrupole system ever, the 6470 delivers attogram-level sensitivity and accurate quantitation with up to six ... «SelectScience.net, juin 15»
Shimadzu expects 'considerable and rapid' LC/MS/MS growth
Shimadzu says its LC/MS triple quadrupole mass spectrometer will strengthen its rapid growth in the sector and push the limits of quantitation for applications ... «FoodQualityNews.com, juin 15»
Agilent launches triple quadrupole mass spectrometer
The 6470 Triple Quadrupole LC/MS was unveiled at the American Society for Mass Spectrometry (ASMS) Conference on Mass Spectrometry and Allied Topics. «FoodQualityNews.com, juin 15»
LCMS Triple Quadrupole Mass Spectrometer Expands UFMS Family
Shimadzu (Germany) is about to release the LCMS-8060 triple quadrupole mass spectrometer. In the year of Shimadzu's 140th anniversary, the system makes ... «International Environmental Technology, juin 15»
TRADE NEWS: Agilent Technologies Launches Its Most Robust …
Engineered to be the company's most robust triple quadrupole system ever, the 6470 delivers attogram-level sensitivity and accurate quantitation with up to six ... «Business Wire, juin 15»
New-Generation System Redefines Performance for GC-MS …
The new Thermo Scientific Q Exactive GC hybrid quadrupole-Orbitrap GC-MS/MS instrument represents the first-ever commercial system offering a combination ... «Business Wire, juin 15»
Apple of their eye: The world's first miniature triple quadrupole mass …
Triple quadrupole mass spectrometers are designed for conducting tandem mass spectrometry (MS) and are particularly effective at determining the ... «separationsNOW.com, avril 15»
Shrinking The Triple Quadrupole Mass Spectrometer
The overall mass analyzer is about 9.5 inches long, about one-quarter of the size of those used in conventional triple-quadrupole instruments, according to ... «The Biological SCENE, mars 15»
MAX Systems: UHV-Compatible Flange-Mounted Quadrupole Mass …
MAX Systems, a range of UHV-compatible flange-mounted quadrupole mass spectrometers, are designed based on Extrel's advanced mass spectrometer ... «Azom.com, nov 14»
Thermo Releases New Fusion Mass Spec, Combining Quadrupole …
Minneapolis -- Thermo Fisher Scientific has introduced a new mass spectrometer that combines in one device a quadrupole for precursor selection with both an ... «Proteo Monitor, nov 14»