**See also:** Quadrupole Quadruple Quadruplet Quadruplex Quadrupled Quadrate Quadratic Quadrillion Quadrivalent Quad Quady Quadrax Quadax Quade Quadis Quadrel Quadrem Quadro Quadrans Quadratum Quadrant Quadriplegia Quadriplegic Quadrilateral

**1.** ** Quadrupole** definition is - a system composed of two dipoles of equal but oppositely directed moment.

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**2.** Definition of ** Quadrupole** in the

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**3.** What does ** Quadrupole** mean? Information and translations of

Quadrupole

**4.** A general distribution of electric charge may be characterized by its net charge, by its dipole moment, its ** Quadrupole** moment and higher order moments.An elementary

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**5.** One of the most common uses of the electric ** Quadrupole** is in the characterization of nuclei.

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**6.** Also useful is the arrangement obtained by reversing one of the coils to produce a magnetic ** Quadrupole** field.

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**7.** A tandem-** Quadrupole** instrument (Q–q coll –Q), frequently called triple-

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**8.** ** Quadrupole** Mass Spectrometers for Advanced Science How it works : THE MASS FILTER • The mass filter differentiates the ions produced and selects species for detection

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**9.** • The most common form of mass filter is the *Quadrupole*

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**10.** • A ** Quadrupole** is 2 pairs of parallel, equidistant metal rods (poles) biased at equal, but opposite potentials

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**11.** The filter system of a ** Quadrupole** mass spectrometer consists of four parallel rods arranged in the form of a square

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**12.** ** Quadrupole** mass spectrometers are perhaps the simplest of mass spec instruments

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**13.** Functioning effectively like a radio, the ** Quadrupole** MS – so-named because of its four charged rods, which run parallel to the flight paths of the ions it measures – filter ions by mass-to-charge ratio (m/z) by altering the voltages in the rods.

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**14.** Other articles where ** Quadrupole** is discussed: magnetic resonance: Nuclear magnetic resonance: …electric

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**15.** The Agilent Ultivo triple ** Quadrupole** liquid chromatography/mass spectrometry system is a small, stackable LC/TQ system that ensures optimal use of lab bench space

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**16.** A ** Quadrupole** analyzer consists of four parallel hyperbolic or cylindrical electrodes

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**17.** A ** Quadrupole** analyzer is a mass filter that creates a

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**18.** Positive ions formed in the ion source are extracted with the ** Quadrupole** filter with a 600

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**19.** ** Quadrupole** fields to provide focusing along both transverse axes

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**20.** If there is an non-symmetric field there will be a force on the ** Quadrupole**, i.e., an electric field gradient

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**21.** We can then define the ** Quadrupole** moment as the tendency of the

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**22.** Due to the 3D nature of a ** Quadrupole** it may be described by a second rank tensor Q where

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**23.** A segmented ** Quadrupole** second stage focuses the ion beam to provide more efficient transmission of ions from the source to the detector

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**24.** An API 3000 triple-** Quadrupole** instrument and a QSTAR Pulsar

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**25.** The ** Quadrupole** mass spectrometer is the most common mass analyzer

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**26.** Most ** Quadrupole** instruments are limited to unit m/z resolution (3) and have a mass range of m/z 1000

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**27.** ** Quadrupole** mass filter Successful path Detector X Y Fig

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**28.** 2: Schematic of a ** Quadrupole** mass filter

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**29.** A ** Quadrupole** mass spectrometer consists of an ionizer (bombardment by electrons from a hot filament), an ion accelerator, and a mass filter consisting of four parallel metal rods arranged as in the figure above.

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**30.** Furthermore, the ** Quadrupole** Orbitrap analyzer combination enables multiplexed operation at the MS and tandem MS levels

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**31.** This is demonstrated in a multiplexed single ion monitoring mode, in which the ** Quadrupole** rapidly switches among different narrow mass ranges that are analyzed in a single composite MS spectrum.

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**32.** Single ** Quadrupole** Mass Detection Single quad technology is a well respected, robust and reliable mass detection technique for many different functional areas of LC-MS across many different industries.

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**33.** Triple ** Quadrupole** GC-MS/MS The benchmark for high throughput labs

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**34.** The Thermo Scientific TSQ 9000 triple ** Quadrupole** GC-MS/MS systems is the best-in-class system for ultimate sensitivity and quantitation of targeted compounds.

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**35.** ** Quadrupole** synonyms,

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**36.** A ** Quadrupole** mass analyzer is a mass filter: only ions with a specific mass-to-charge ratio (m/Q) reach the detector

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**37.** The SI unit of ** Quadrupole** moment is C m 2, and the dimensions are L 2 Q, By suitable rotation of axes, in the usual way (see for example section 2.17 of Classical Mechanics), the matrix can be diagonalized, and the diagonal elements are then the eigenvalues of the

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**38.** Dave Gordon at Waters Corporation provides a brief overview of what a ** Quadrupole** mass analyzer is and how it works

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**39.** The Thermo Scientific TSQ Altis Triple ** Quadrupole** Mass Spectrometer features segmented

Quadrupole, Quadrupoles

**40.** ** Quadrupole** Moment of the Up: Electromagnetic Interactions

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**41.** Previous: Magnetic Moments ** Quadrupole** Interactions

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**42.** You will recall from last time that we defined the electric ** Quadrupole** interaction be performing a taylor expansion on the electromagnetic four-potential and identifying the term that transformed as a two index symmetric traceless tensor under rotations,

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**43.** ** Quadrupole** (redirected from

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**44.** ** Quadrupole** (ˈkwɒdrʊˌpəʊl) n (General Physics) physics a set of four associated positive and negative electric charges or two associated magnetic dipoles.

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**45.** ** Quadrupole**: a rectangular array of conducting rods to which variable voltages can be applied

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**46.** Conceptual explanation of the way a ** Quadrupole** Mass Filter works.

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**47.** A ** Quadrupole** mass spectrometer contains four parallel cylindrical rods which can scan or filter sample ions based on their mass-to-charge ratio

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**48.** ** Quadrupole** definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation

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**49.** The other MS which functions by scanning of ions and allowing ion transmission is the single ** Quadrupole** mass analyzer

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**50.** The 6495C triple ** Quadrupole LC/MS** system is the highest performance LC/TQ available, ideally suited for peptide quantitation and other applications that require the most sensitive TQ LC/MS

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**51.** This tandem ** Quadrupole** mass spec includes third-generation Agilent iFunnel design with VacShield for easy maintenance.

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**52.** The ** Quadrupole** represents how stretched-out along some axis the mass is

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**53.** A flat disk also has a ** Quadrupole**, with the opposite sign of the

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**54.** We should also note at this stage that it might appear that the ** Quadrupole** moment is a better observable from which to extract

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**55.** ** Quadrupole** module with a tunable dipole moment

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**56.** The magnetic ** Quadrupole** module is composed of two identical NdFeB block magnets (1.2 mm by 1 mm by 0.5 mm) inside a 3D-printed square case ().Two magnets are arranged with a relative angle θ between their dipole moments.

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**57.** ** Quadrupole** definition: a set of four associated positive and negative electric charges or two associated Meaning, pronunciation, translations and examples

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**58.** ** Quadrupole** anisotropies are associated with density, vorticity and gravitational wave fluctuations; Their projection determines the polarization pattern and may be distinguished by symmetry properties; The polarization probe more than just the density or temperature fluctuations at recombination

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**59.** Examples of how to use “** Quadrupole**” in a sentence from the Cambridge Dictionary Labs

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**60.** The ** Quadrupole** moment also determines the energy of a

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**61.** In the case described by Figure 1 the absolute value of the ** Quadrupole** moment is equal to 2ela, where e is the charge, 1 is the dimension of the dipoles, and a is the distance between the centers of the dipoles

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**62.** A ** Quadrupole** is a second-order multipole.

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**QUADRUPOLE** [ˈkwädrəˌpōl]

NOUN

- › Quadrupole mass spectrometer
- › Quadrupole mass analyzer
- › Quadrupole ion trap
- › Quadrupole electric field
- › Quadrupole mass spectrometer principle

Definition of quadrupole. : a system composed of two dipoles of equal but oppositely directed moment.

**quadrupole**

The quadrupole moment tensor Q is a rank-two tensor - 3x3 matrix. There are several definitions, but it is normally stated in the traceless form (i.e.

As with any multipole moment, if a lower-order moment, monopole or dipole in this case, is non-zero, then the value of the quadrupole moment depends on the choice of the coordinate origin. For example, a dipole of two opposite-sign, same-strength point charges, which has no monopole moment,...