Sector mass spectrometry

Linked Scanning and Metastable Ions in Magnetic-Sector Mass Spectrometry... 

Moseley, M. A., Deterding, L. J., Tomer, K. B., and Jorgenson, J. W. Coupling of capillary zone electrophoresis and capillary liquid chromatography with coaxial continuous-flow fast atom bombardment tandem sector mass spectrometry, /. Chromatogr., 480, 197, 1989. 

In mass spectrometers, ions are analysed according to the ml7. (mass-to-charge) value and not to the mass. While there are many possible combinations of technologies associated with a mass-spectrometry experiment, relatively few forms of mass analysis predominate. They include linear multipoles, such as the quadrupole mass filter, time-of-flight mass spectrometry, ion trapping forms of mass spectrometry, including the quadrupole ion trap and Fourier-transform ion-cyclotron resonance, and sector mass spectrometry. Hybrid instruments intend to combine the strengths of the component analysers. 

The Environmental Health Laboratory Sciences Division of the National Center for Environmental Health and Injury Control, Centers for Disease Control, is developing methods for the analysis of 1,2-dibromoethane and other volatile organic compounds in blood. These methods use high resolution gas chromatography and magnetic sector mass spectrometry which gives detection limits in the low parts- per- trillion range. 

Barber, M. Green, B.N. The Analysis of Small Proteins in the Molecular Weight Range 10-24 kDa by Magnetic Sector Mass Spectrometry. Rapid Commun. Mass Spectrom. 1987, 7,80-83. 

Cody, R.B. Tamura, J. Mussehnan, B.D. ESI/Magnetic Sector Mass Spectrometry Calibration, Resolution, and Accurate Mass Measurements. Anal. Chem. 1992, 64, 1561-1570. 

Chapman, J.R. Gallagher, R.T. Barton, E.C. Curtis, J.M. Derrick, P.J. Advantages of High-Resolution and High-Mass Range Magnetic-Sector Mass Spectrometry for ESI. Org. Mass Spectrom. 1992, 27,195-203. 

In addition to those ions formed during or soon after primary ion impact, as in the processes just described, other ions arise through subsequent events. Unimolecular reactions of ions, akin to metastable decompositions in magnetic sector mass spectrometry, occur in the free vacuum. The resulting fragment ions have intensities which contradict the notion that SIMS is a "soft" ionization technique, although some fraction of the ion production events can be so characterized. 

The evolution of a calibration law for the cubic cell has seen a number of proposals for the frequency-to-mass relationship (26.37-40). Recently, Ledford, et al. (40) developed an algebraically correct mass calibration law (Equation 2), which is now commonly used. Unlike sector mass spectrometry in which many... 

R. E. Shomo, II, A. G. Marshall, and C. R. Weisenberger, "Laser Desorption Fourier Transform Ion Cyclotron Resonance Mass Spectrometry vs. Fast Atom Bombardment Magnetic Sector Mass Spectrometry for Drug Analysis," Anal. Chem., 57, 2940-2944 (1985). 

Cheng, C., Gross, M. L., and Pittenauer, E. 1998. Complete structural elucidation of triacylglycerols by tandem sector mass spectrometry. Analytical Chemistry, 70, 4417 1426. 

JA Loo, R Pesch. Sensitive and selective determination of proteins with electrospray ionization magnetic sector mass spectrometry and array detection. Anal Chem 66 3659-3663, 1994. 

JR Chapman, RT Gallagher, EC Barton, JM Curtis, PJ Derrick. Advantages of high-resolution and high-mass range magnetic-sector mass spectrometry for electrospray ionization. Org Mass Spectrom 27 195, 1992. 

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