Determination of copper (II)‎ by using 2,2 -[(1,1 -biphenyl)‎-4,4 -diyl bis-(azo)‎]-bis-[4,5 diphenyl imidazole] (Bbai)‎

الملخص EN

This research involve determination of Cu (II) by use a new reagent 2, 2 /-[ (1-/ Biphenyl)-4, 4 /-diyl bis-(azo) ]-bis-[ 4, 5-diphenyl imidazole] ( Bbai ), the wavelength of maximum absorption copper (Bbai) complexes at 588 nm After optimum condition were constructed, Beer's law was obeyed in the range (0.4-2) ppm, the linearity ( R2 ) was (0.9998), correlation factor (r) was (0.998) and molar absorptivity (ε) was 4.1395x 104 L.mol-1.cm-1.

The stoichiometry of metal to reagent were (1:1), Precision and accuracy of the analytical procedure was R.S.D % (0.4) % and (Erel.

Re) % were (-3.5, 96.5 %) detection limit was (0.03) ppm, the interferences of ions (CrO4 Mn2+, Co2+, Ni2 Zn2+, Cd2+, Ag2+, Fe3+, Pb2+, Mg2+, Ca2+, Hg1+, Hg2+) were study and masked by using suitable masking agent.