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Resolving power, with reflectron

Notable among the instrumental design characteristics is the use of direct current (dc) quadrupole lenses to limit ion-beam width spatially within the extraction region. These lenses, along with the use of an ion reflectron, provided resolving powers of approximately 1600 (FWHM) [40]. An illustrative spectrum of Pb and Bi obtained with this instrument is provided as Fig. 12.10. [Pg.474]

Figure 5.2 Comparison of linear and reflectron time-of-flight MALDI-MS for the analysis of oligonucleotides of length up to 60 nucleotides. For shorter oligonucleotides up to 25mer length (ca. 8000 Da), higher resolution (mass resolving power of 15 000) and mass accuracy (10-50ppm) can be achieved with reflectron TOF. At higher... Figure 5.2 Comparison of linear and reflectron time-of-flight MALDI-MS for the analysis of oligonucleotides of length up to 60 nucleotides. For shorter oligonucleotides up to 25mer length (ca. 8000 Da), higher resolution (mass resolving power of 15 000) and mass accuracy (10-50ppm) can be achieved with reflectron TOF. At higher...
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