Coprecipitation Method of Synthesis, Characterization, and Cytotoxicity of Pr³⁺:LaF₃ (C_Pr = 3, 7, 12, 20, 30%) Nanoparticles

Figure 4

(a) The diphenylamine test data. The supernatant (1) after the first stage of centrifugation, (2) after the second stage of centrifugation, and (3) after the third stage of centrifugation. (b) The diphenylamine test data for different concentrations of NO₃⁻.

(a)

(b)