Mass Spectral Profile for Rapid Differentiating Beta-Lactams from Their Ring-Opened Impurities

<div>Represent CID spectra of deaminated daughter ion of cefprozil (a) and amoxillin (b). The spectra were obtained with the ion trap. The resonance voltages were both 1 volt, and the activating times were both 20 millisecond. The activating widths were both 10 amu.</div>

BioMed Research International

fig5

Figure 5

Figure 5: Mass Spectral Profile for Rapid Differentiating Beta-Lactams from Their Ring-Opened Impurities 