Figure 2: Multistage mass spectrometry.
From: Carbon arc production of heptagon-containing fullerene[68]
(MSn, n=1–3). Progressive dechlorination produces C68Clm (m=0–6) (m is indicated in blue). The species picked for next stage of fragmentation, by collision with helium buffer gas in ion trap, is marked by an asterisk. m/z, mass to charge ratio.
