Quadratic reflectron mass spectrometer

FIGURE 3.12 Schematic diagram of the quadratic reflectron mass spectrometer of Yoshida. (Reprinted from reference 18). 

J. Flensburg, D. Haid, J. Blomberg, J. Bielawski, and D. Ivansson. Applications and Performance of a MALDI-ToF Mass Spectrometer with Quadratic Field Reflectron Technology. J. Biochem. Biophys. Meth., 60(2004) 319-334. 

FIGURE 8.27 Comparison of the voltages in time-of-flight mass spectrometers using (a) a single-stage reflectron, (b) a dual-stage reflectron, (c) the curved-field reflectron, and (d) a quadratic reflectron. 

Time-of-flight mass spectrometers have also been used with quadrupole ion traps, where they record the final mass spectrum in any MS" experiment. One of the first such instruments by Chien and Lubman used an electrospray source. A MALDI trapTOF was reported by Doroshenko and Cotter using a quadratic reflectron as the TOF mass analyzer. In this... 

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