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  2. Quadrupole mass analyzer - Wikipedia

    en.wikipedia.org/wiki/Quadrupole_mass_analyzer

    In a quadrupole mass spectrometer (QMS) the quadrupole is the mass analyzer – the component of the instrument responsible for selecting sample ions based on their mass-to-charge ratio (m/z). Ions are separated in a quadrupole based on the stability of their trajectories in the oscillating electric fields that are applied to the rods. [2]

  3. Triple quadrupole mass spectrometer - Wikipedia

    en.wikipedia.org/wiki/Triple_quadrupole_mass...

    In the years following, the first commercial triple-quadrupole mass spectrometer was developed at Michigan State University by Enke and Yost in the late 1970s. [2] It was later found that the triple-quadrupole mass spectrometer could be utilized to study organic ions and molecules, thus expanding its capabilities as a tandem MS/MS technique. [1]

  4. Ion trap - Wikipedia

    en.wikipedia.org/wiki/Ion_trap

    Schematic diagram of ion trap mass spectrometer with an electrospray ionization (ESI) source and Paul ion trap. A Paul trap is a type of quadrupole ion trap that uses static direct current (DC) and radio frequency (RF) oscillating electric fields to trap ions. Paul traps are commonly used as components of a mass spectrometer.

  5. Quadrupole ion trap - Wikipedia

    en.wikipedia.org/wiki/Quadrupole_ion_trap

    In experimental physics, a quadrupole ion trap or paul trap is a type of ion trap that uses dynamic electric fields to trap charged particles. They are also called radio frequency (RF) traps or Paul traps in honor of Wolfgang Paul , who invented the device [ 1 ] [ 2 ] and shared the Nobel Prize in Physics in 1989 for this work. [ 3 ]

  6. Gas chromatography–mass spectrometry - Wikipedia

    en.wikipedia.org/wiki/Gas_chromatography–mass...

    The most common type of mass spectrometer (MS) associated with a gas chromatograph (GC) is the quadrupole mass spectrometer, sometimes referred to by the Hewlett-Packard (now Agilent) trade name "Mass Selective Detector" (MSD). Another relatively common detector is the ion trap mass spectrometer.

  7. Mass spectrometry - Wikipedia

    en.wikipedia.org/wiki/Mass_spectrometry

    A quadrupole mass analyzer acts as a mass-selective filter and is closely related to the quadrupole ion trap, particularly the linear quadrupole ion trap except that it is designed to pass the untrapped ions rather than collect the trapped ones, and is for that reason referred to as a transmission quadrupole. A magnetically enhanced quadrupole ...

  8. Tandem mass spectrometry - Wikipedia

    en.wikipedia.org/wiki/Tandem_mass_spectrometry

    A quadrupole time-of-flight hybrid tandem mass spectrometer. Tandem mass spectrometry, also known as MS/MS or MS 2, is a technique in instrumental analysis where two or more stages of analysis using one or more mass analyzer are performed with an additional reaction step in between these analyses to increase their abilities to analyse chemical samples. [1]

  9. Hybrid mass spectrometer - Wikipedia

    en.wikipedia.org/wiki/Hybrid_mass_spectrometer

    A sector instrument can be combined with a collision quadrupole and quadrupole mass analyzer to form a hybrid instrument. [1] A BEqQ configuration with a magnetic sector (B), electric sector (E), collision quadrupole (q) and m/z selection quadrupole (Q) have been constructed [2] [3] and an instrument with two electric sectors (BEEQ) has been described.