Reflectron TOF Mass Spectrometers

The advent of ultrafast pump-probe laser techniques62 and their marriage with the TOF method also enables study of internal ion-molecule reactions in clus-ters.21,63-69 The apparatus used in our experiments is a reflectron TOF mass spectrometer coupled with a femtosecond laser system. An overview of the laser system is shown in Figure 4. Femtosecond laser pulses are generated by a colliding pulse mode-locked (CPM) ring dye laser. The cavity consists of a gain jet, a... 

Aicher, K.P. Muller, M. Wilhelm, U. Grotemeyer, J. Design and Setup of an Ion Trap-Reflectron-TOF Mass Spectrometer. Eur. Mass Spectrom. 1995, 1, 331-340. 

Ions produced by SPI are detected and mass analyzed by a reflectron TOF mass spectrometer having a resolution of m/Am = 1000. The sample is introduced into the... 

Detection by a High Resolution Reflectron-TOF-Mass Spectrometer... 

Figure 4.6. Post-source decay measurements with a reflectron TOF mass spectrometer. (Reproduced from ref. 42 by permission of Wiley-Interscience, copyright 1997.)...

Figure 3.1 Schematic of TOF mass spectrometers equipped with two-stage acceleration ion sources, (a) A linear TOF mass spectrometer and (b) a reflectron TOF mass spectrometer...

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. 

Matrix assisted laser desorption ionization time-of-flight (MALDI-TOE) mass spectrometry was carried out with a PerSeptive Biosystems Voyager-DE-RP MALDl-TOF mass spectrometer. A 337-nm UV nitrogen laser producing 3-ns pulses was used in the reflectron mode. The samples were prepared by mixing 10 pi of a 0.1 M HAc solution of the sample with 20 pi of a solution of 3 mg/1 a-cyano-4-hydroxy cinnamic acid in wafer. One pi of that solution was loaded on the gold-sample plate. 

Hieftje and co-workers first reported a design for ICP-ToF mass spectrometric systems with both orthogonal acceleration (oa) and axial acceleration (aa) geometry.39 11 The different experimental setups of ICP-ToF mass spectrometers with orthogonal and axial acceleration are compared in Figures 5.10 and 5.11. Both instruments possess a time-of-flight analyzer with a reflectron to improve the mass resolution. 

V.I. KARATEV, B.A. MAMYRIM and D.V. SMIKK introduce the reflectron that corrects the kinetic energy distribution of the ions in a TOF mass spectrometer [41],... 

Mass spectra were collected on a Bruker Reflex II-MALDI-TOF mass spectrometer (Billerica, MA) equipped with delayed extraction and a N2 laser (337 nm). In the positive reflectron mode, an accelerating voltage of 25.0 kV and a reflectron voltage of 26.5 kV were used. Spectra are the sum of 50-300 shots. Spectra were calibrated with bradykinin (1060.6 MW) and glucagon (3483.8 MW) as external standards. 

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