abstract: An analytical method validation represents a complete investigation of the materials’ properties, following certain steps, being necessary for “proving the fit for purpose of an analytical method”. The validation procedure demonstrate that a defined validation protocol for an analytical method applied to a specified testing material and a defined concentration of the analyt – named an...

Abstract In this work, Fe3O4-graphene oxide nanocomposite (GO-Fe3O4) was prepared as effective absorbent for magnetic solid phase extraction (MSPE) of trace quantities of cadmium ions in environmental water and rice samples using 1, 2-dihydroxy anthraquinone-3-sulphonic acid, sodium salt (Alizarin red S) and flame atomic absorption spectrometry (FAAS). The   GO-Fe3O4 was characterized by scanni...

In this study, a new sorbent of chemically-modified activated carbon with L-arginine (AC-Arg) has been produced as solid-phase extraction, to trace Zn(II) and Cd(II) ions in real samples, including soil and water samples, by Flame Atomic Absorption Spectrometry (FAAS). Once the surface coverage value is determined, the surface modification has been investigated and assessed, while having em...