Table 2: The iron used for the preparation of Zn-La magnetite nanoparticles.
X ratio Fe % TH Fe % AAS Fe % ICP
0.0 O2 58.1 52.99
0.0 N2 58.1 40.21
0.1 O2 39.48 37.9 40.92
0.1 N2 39.48 37.68 42.6
0.15 O2 37.64 35.17 25.92
0.15 N2 37.64 39.5 31.98
0.2 O2 35.9 38.65 41.52
0.2 N2 35.9 37.57 37.5
0.25 O2 34.26 30.42 40.32
0.25 N2 34.26 31.38 38.34
0.3 O2 32.7 38.55 31.68
0.3 N2 32.7 33.44 37.92