Determination of zinc and copper in fish samples collected from Egypt river Nile by differential pulse anodic stripping voltammetry

Abstract EN

Zinc and copper contents in the edible parts (muscle, fillet) of 17 commercially used fish species from South Egypt River Nile (Aswan) were determined by means of DPASV (differential pulse anodic stripping voltammetry) at Hanging Mercury Drop Electrode (HMDE).

In the sample preparation step, all fish samples were lyophilized, milled in a ball mill and finally decomposed by using mixed acid (HNO3 + HClO4).

The accuracy of the concentrations determined in this study was checked by the measurements of the certified reference material CRM No.

422, cod muscle from the Commission of the European Communities, Community Bureau of Reference.

All Zn and Cu concentrations observed from species of Egypt River Nile showed that fish from this area is a good source of these essential elements and the developed method is accepted as a good analytical routine method for these samples.

The great advantage of DPASV is the simplicity, selectivity, sensitivity, and shortening analysis time over the Atomic Absorption spectrophotometric AAS method.