quadrupole mass filter

A term of art used in mass spectrometry for a specific combination of direct current (DC) and radiofrequency (RF) voltages which, when applied to four parallel metal rods, creates a filtering device that limits the transmission of ions to a certain defined m/z value. Changing the ratio of the voltages changes the m/z value of ions that pass through to the detector. The quadrupole mass filter can also be operated in other modes, such as passing a mass range of ions to the detector. If only the RF portion of the voltage is applied to the rods, virtually all ions pass to the detector.

单词	quadrupole mass filter
释义	quadrupole mass filter quadrupole mass filter A term of art used in mass spectrometry for a specific combination of direct current (DC) and radiofrequency (RF) voltages which, when applied to four parallel metal rods, creates a filtering device that limits the transmission of ions to a certain defined m/z value. Changing the ratio of the voltages changes the m/z value of ions that pass through to the detector. The quadrupole mass filter can also be operated in other modes, such as passing a mass range of ions to the detector. If only the RF portion of the voltage is applied to the rods, virtually all ions pass to the detector. AcronymsSeeQMF
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