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. 2017 Jul 15;33(3):239–253. doi: 10.5487/TR.2017.33.3.239

Table 2.

Characterization of nano-sized Nd2O3 dispersion during the exposure period

Parameter Dose (mg/m3)

0.5 2.5 10
Concentration (%) 0.10 ± 0.01a 0.40 ± 0.00 1.11 ± 0.13
Energy (Joule/mL) 251 ± 33.0 253 ± 38.8 257 ± 36.5
Size (nm) 206 ± 31.0 267 ± 14.8 273 ± 13.2
PDI 0.23 ± 0.05 0.25 ± 0.05 0.31 ± 0.04

PDI, polydispersity index.

a

Values are expressed as means ± SD (n = 20).