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. 2020 Jan 30;33(1):21–33. doi: 10.1089/jamp.2018.1505

Table 3.

Comparison of Particle Size Distribution

Mass-before radiolabeling Mass-after radiolabeling Radioactivity
MMAD (μm) GSD MMAD (μm) GSD AMAD (μm) GSD
2.84 (0.10) 1.78 (0.05) 2.91 (0.24) 1.81 (0.19) 2.92 (0.21) 2.06 (0.16)

Values in parentheses are SD (n = 6) of respective values.

AMAD, activity median aerodynamic diameter; GSD, geometric standard deviation; MMAD, mass median aerodynamic diameter.