3.8 X-RAY FLUORESCENCE
The chemical compositions of the clay samples were determined by X-ray fluorescence (XRF) analysis.
Samples were oven-dried at 100°C for 12 hours for adsorbed water measurements, and crushed. The powdered
Samples were then mixed with a binder (ratio of 1: 9 in grams of C-wax and EMU powder) at a ratio of 2: 9 (2 Gram binder and 9 gram sample). The powder mixture was then pelletized at a pressure of 15 Kbars for 1 minute.
Loss Of Ignition (LOI) experiment was performed prior to major element analysis. The XRF analyses were carried out at the Kaduna Geological Survey department, Kaduna State.
P-analytical PW1480 X-ray fluorescence spectrometer using a Rhodium Tube as the X-ray source was used. The technique reports concentration as percentage oxides for major elements and minor elements.