Figure 1.
IRMPD product ion mass spectra of [GAPDH.S – 5H]5− of m/z 1326.0 using (a) 6.0 ms and (b) 8.0 ms of irradiation at 10 W at q-value of 0.10. (c) CID product ion mass spectra of the same siRNA anion (14% normalized collision energy, q = 0.25). The precursor ion is indicated by an asterisk (*) and internal ions by #. Not all peaks were labeled to reduce congestion.