quadrupole mass spectrometer
Quick Summary
A quadrupole mass spectrometer is an instrument used in mass spectrometry to analyze ions based on their mass-to-charge ratio. It utilizes four cylindrical electrodes arranged parallel to each other. By applying specific static and radio frequency voltages to these electrodes, ions are subjected to forces that cause them to oscillate. Only ions with a particular mass-to-charge ratio can maintain stable oscillations and pass through the instrument, while others are deflected and lost. This makes the quadrupole spectrometer effective for high-speed data acquisition and offers adjustable sensitivity and resolution by altering electrical parameters. It is commonly used in gas chromatograph-mass spectrometers. The development of this device was described in 1953 by Wolfgang Paul and Helmut Steinwedel.12
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mass spectrometryIon-velocity spectrometers… described the development of a quadrupole mass spectrometer. The application of superimposed radio frequency and constant potentials between four parallel rods can be shown to act as a mass separator in which only ions within a particular mass range will perform oscillations of constant amplitude and be collected at the…
Read More… described the development of a quadrupole mass spectrometer. The application of superimposed radio frequency and constant potentials between four parallel rods can be shown to act as a mass separator in which only ions within a particular mass range will perform oscillations of constant amplitude and be collected at the…
Read More- mass spectrometryQuadrupole spectrometer
Positive ions incident along an axis parallel to four cylindrical electrodes, as shown in Figure 6, experience for the static potentials indicated a focusing force along the x axis and a defocusing one in the z direction. If one superimposes a radio frequency…
Read MorePositive ions incident along an axis parallel to four cylindrical electrodes, as shown in Figure 6, experience for the static potentials indicated a focusing force along the x axis and a defocusing one in the z direction. If one superimposes a radio frequency…
Read More - spectroscopyResonance-ionization mass spectrometry
Since then the quadrupole mass filter and the time-of-flight mass spectrometer have been developed. These three types have been built into RIMS systems (see mass spectrometry).
Read MoreSince then the quadrupole mass filter and the time-of-flight mass spectrometer have been developed. These three types have been built into RIMS systems (see mass spectrometry).
Read More