Magnetic sector analyzer double-focusing

The most popular mass analyzers for ICP-MS have been quadrapole, magnetic-sector, and double-focusing analyzers, although time-of-flight analyzers are also used. These analyzers vary in resolution, throughput, and scanning time. The resolution of a mass analyzer is defined as ... [Pg.869]

The double-focusing combination of electrostatic- and magnetic-sector analyzers allows the inherent energy spread of the beam to be compensated for by design and ensures that there is no spread in the beam at the collector. [Pg.179]

BE double-focusing mass spectrometer using a magnetic sector analyzer linked to an electrostatic... [Pg.383]

Magnetic deflection mass analyzer Double focusing sector spectrometer Quadrapole mass analyzer Triple quadrapole analyzer... [Pg.297]

Double focusing magnetic sector analyzers were very important in the initial development of MS/MS experiments. Historically, the first information of the MS/MS type was provided by the so-called metastable peaks (Hippie 1945), observed as broad peaks at nonintegral values of m z in magnetic sector MS spectra. These broad signals correspond to fragment ions formed from... [Pg.254]

Mass Analyzers Double-Focusing Magnetic Sector Technology... [Pg.57]

By combining a magnetic-sector mass analyzer with an electrostatic analyzer (often termed a double-sector or double-focusing mass spectrometer), a significant improvement in resolution is realized. Such a double-focusing instrument can achieve a resolution of the order of 100,OOO.The double-focusing magnetic mass analyzer utilizes two independent sectors. In addition to the... [Pg.41]

Mass spectrometer configuration. Multianalyzer instruments should be named for the analyzers in the sequence in which they are traversed by the ion beam, where B is a magnetic analyzer, E is an electrostatic analyzer, Q is a quadrupole analyzer, TOP is a time-of-flight analyzer, and ICR is an ion cyclotron resonance analyzer. For example BE mass spectrometer (reversed-geometry double-focusing instrument), BQ mass spectrometer (hybrid sector and quadrupole instrument), EBQ (double-focusing instrument followed by a quadrupole). [Pg.430]

Electrostatic Analyzer In magnetic-sector instruments, an electrostatic sector can be incorporated either before or after the magnet to provide energy resolution and directional focusing of the ion beam. The resolution achievable in these double-focusing instruments is sufficient to separate ions having the same nominal mass (e.g., 28 Daltons) but with different chemical formula (e.g., N2 and CO). [Pg.12]

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