2. Experimental2. 1. ApparatusThe JASCO FTIR-4100 spectrometer in the 4000–400 cm-1 regions by using KBr disc (KBr pellet) was performed the characterization of olive bio-alkyd resin. Ammonium molybdate tetrahydrate ((NH4)6Mo7O24.
4H2O) absorbance measurements were demonstrated by using JASCO (V-630 UV-VIS Spectrophotometer, Japan) at ?max 485. Bulk DC conductivity was established using Keithley, 6517B electrometer-high resistance meter after pressing OOBAR disk by a Hydraulic press at 12 tons. Dynamic technique for chromatographic separation experiments was carried out by using a glass column with a bed height of 15 cm approximately that contained 9.5 g of OOBAR was 35 cm long and 1.5 cm in diameter. 2. 2.
Reagents, materials and real samples Olive biosorbent (OB): Olive tree legs and green leaves were cut to small particle size followed by washing with water, drying at 250 ?C and blending using food blender. Carboxy olive biosorbent (COB) preparation: 100 g of OB with 80 mL of concentrated HNO3 were heating in a beaker until brown foams finished, then washing with distilled water and methanol then drier at 80 ?C.