Skip to main content
. Author manuscript; available in PMC: 2014 Feb 5.
Published in final edited form as: Anal Chem. 2013 Jan 7;85(3):1727–1733. doi: 10.1021/ac3030398

Figure 2.

Figure 2

(a) The optimum declustering potential value to produce m/z 148 from CID of m/z 337 precursors was determined by ramping the declustering potential in product ion mode. The maximum intensity of m/z 148 was observed at −75 V. (b) Optimization of collision energy for m/z product ion formation at fixed declustering potential of −75 V. Abundances of three strong peaks: m/z 148, 149, 319 are shown as a function of collision energy. The highest signal for m/z 148 was observed at −34 eV (Elab). The inset schematically shows the rates of formation of m/z 148 and 149 as a function of internal energy of m/z 337.