Tandem quadrupole/time-of-flight instrument for mass spectrometry/mass spectrometry. [Tetraethylammonium bromide]

Journal Article · Thu Nov 01 04:00:00 EST 1984 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00277a007· OSTI ID:7006402

Glish, G L; Goeringer, D E

A new tandem mass spectrometer for MS/MS studies is described. The instrument consists of a quadrupole mass filter followed by a time-of-flight mass analyzer. A collision cell is located in the region between the two analyzers. Low-energy parent ions (< 100 eV) are mass analyzed by the quadrupole and injected into the collision cell. Daughter ions from collision-activated dissociations (CAD) as well as unfragmented parent ions are accelerated by 1000 eV upon exiting the collision cell. These accelerated ions are then gated into the time-of-flight for mass analysis. Conventional mass spectra may be obtained either by operating the quadrupole in an rf-only mode, where it passes all ions, and using the time-of-flight analyzer or by scanning the quadrupole in the normal fashion and gating the time-of-flight analyzer continually on. Preliminary results are shown and potential improvements and applications are discussed.

• Research Organization: Oak Ridge National Lab., TN
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 7006402
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 56:13; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical &amp; Spectral Procedures
CHEMICAL ANALYSIS
DATA
ENERGY DEPENDENCE
EXPERIMENTAL DATA
FRAGMENTATION
INFORMATION
MASS SPECTROSCOPY
MEASURING INSTRUMENTS
NUMERICAL DATA
ORGANIC BROMINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SPECTROMETERS
SPECTROSCOPY
TIME-OF-FLIGHT SPECTROMETERS