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. 2002 Jan 15;30(2):e7. doi: 10.1093/nar/30.2.e7

Figure 2.

Figure 2

Figure 2

Figure 2

Figure 2

Figure 2

Figure 2

Daughter ion spectra of [M+H]+ of (A) Gua, (B) 8-oxoGua, (C) dG, (D) 8-oxodG, (E) Guo and (F) 8-oxoGuo. The spectra are recorded by selecting the pseudo molecular ion ([M+H]+) in the first quadrupole (Q1). After collision activation of the selected ions in the collision cell, the daughter ion spectra are recorded by scanning the last quadrupole (Q3).