Production of L-Leucine Nanoparticles under Various Conditions Using an Aerosol Flow Reactor Method

Table 2

The comparison of the vaporisation of L-leucine from the particles in the heated zone of the reactor in the current and previous study of Raula et al. [8]. Experimentally derived particle number concentrations in the calculations were 7.4×10⁵ in this study and 8.5×10⁵ in Raula et al. [8].

	This study					Raula et al. [8]
𝐶reactor [g/m^3]	0.012	0.029	0.065	0.143	0.318	0.02	0.09	0.22	1.34
𝑑m [𝜇m]	0.42	0.52	0.57	0.60	0.78	0.80	1.35	1.69	2.41
𝑑res at 150^∘C [𝜇m]	0.26	0.44	0.50	0.54	0.75	0.78	1.34	1.69	2.4
Time needed for complete	10.9	16.6	19.9	22.0	38.4	41.4	278.9	n.a.	n.a.
vaporisation at 200^∘C [ms]

N is the number of particles in the calculations for all concentrations, 𝑑_m is the mass median diameter at 110^∘C calculated from 𝑑_g using a Hatch-Choate conversion equation for log-normal size distributions given in literature [17], 𝑑_res is the size of the residual particles obtained from the calculation with (1), n.a. = not applicable.