Area under curve and zero order spectrophotometric determination copper complexation with N,N'-cyclohexane-l,2-diylidene-bis(4-methaxybenzoythydrazide)

Abstract

This paper describes the development of a spectrophotometric for the determination of copper by coupling with ligand (CHMBH). The a maximum absorption at (415nm) .Beer’s Lambert law is obeyed over the concentration ( 4-24 mg/L) limit of detection and limit of quantitation were found to be 0.00338 mg/L and 0.01025 mg/L for the area under curve and 0.1677 mg/L and 0.508 mg/L for zero order method, the high accuracy of both methods was 99.356 % for the area under curve method and 100.087 % for the zero order method respectively. Both methods have applied successfully to determination of copper with (CHMBH).
Keywords: Cu(ll), (CHMBH), (AUC), zero order.