⚡ Four-charge effect 🔬 A scientific device

quadrupole

9.9

A device with four rods that filters ions by their mass and charge

noun
/ˈkwɒdrəˌpoʊl/

Specialized

: cuadrupolo

Will showcase the latest developments in quadrupole mass spectrometers for vacuum, surface, plasma, and endpoint characterization studies.
quadrupole mass spectrometers
quadrupole mass
quadrupole ion

Examples

Researchers presented their findings on the efficiency of a quadrupole system in filtering out unwanted ions.
Manufactures an extensive range of high-performance quadrupole mass spectrometers for plasma characterization studies, surface science applications, precision gas analysis, and vacuum diagnostics.

Academic text (2004)
And this encouraged us to start our first high mass quadrupole time of flight.
So what goes through are the monatomic ions down this quadrupole mass filter toward the detector.
MS source and quadrupole temperatures were 230°C and 150°C, respectively.

Academic text (2016)
Founded as Extranuclear, it has been manufacturing high-resolution, high-sensitivity quadrupole mass spectrometers since 1964.

Academic text (1997)
The scientist adjusted the settings on the quadrupole mass filter to enhance the analysis of ion samples.
The new quadrupole device improved the accuracy of the mass-to-charge ratio measurements in the lab.

Surface Forms

quadrupole singular

quadrupoles plural

Morphology

quadrupole = pole (semi-transparent) = quadru + pole

The prefix 'quadru-' indicates four, and 'pole' refers to rods, but the specific scientific application may not be immediately clear.

Etymology

Quadrupole comes from two parts: quadru- meaning 'four' and pole meaning 'a point or end, like a magnet's pole'. So a quadrupole device is literally a 'four-pole' tool — four rods or poles arranged to work together to filter ions.