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. Author manuscript; available in PMC: 2020 Nov 5.
Published in final edited form as: Anal Chem. 2019 Oct 7;91(21):14002–14008. doi: 10.1021/acs.analchem.9b03586

Figure 2.

Figure 2.

(a) CDMS mass distributions measured for HBV T = 4 capsids with sample concentrations of 10 and 0.5 μg/mL. Both distributions were recorded for 16.6 min (10 000 trapping events) and plotted using 25 kDa bins. The distribution measured with 0.5 μg/mL contains 19 ions. (b) shows a log−log plot of the number of ions detected in the 3.8−4.4 MDa mass window shown in (a) during 10 000 trapping events for a range of concentrations from 0.5 to 10 μg/mL. The points are the measured values and the line is a least-squares fit. The equation for the line is y = 1.66 + 1.031x. The slope (1.031) is close to the expected value of 1.0.