Analytical studies on some• Metal Ions and Their Application to some _Industrial . Products

Abstract

to standard reference materials (US NIST SRM 1880 and 1889) generously provided from Assiut Cement Company. Then, they were applied to other industrial products viz .. Sugar, superphosphate fertilizers and randum cement samples. The contents of the thesis are summarized as follows:

(1) The first chapter includes an introduction to two parts, the first part (A) involves voltammetric section and the second part (B) involves spectrophotometric section. The first part (A) gives a summary to techniques that has been used in this work e.g. differential pulse, linear sweep, square-wave, cyclic voltammetry and chronocoulometry. It includes also an introduction to the bare solid electrodes specially that utilized in this thesis; the glassy carbon electrode (GCe) as a working electrode. It also involves an introduction to stripping analysis in either anodic or cathodic directions. Finally, it includes the literatu The present thesis deals with voltammetric and spectrophotometric studies on the determination of Mg(Il), Al(lll), Mn(II) and U(VI) or F e(Ill) metal ions. Since, the best way to validate a method is to analyze a standard reference material of known composition, the studies have been validated by applying them re survey of the previous studies of Mg(II), Al(III), Mn(II) and U(VI) metal ions. It is found that no

dat are existed in the

metal ions at the GCe.

literature dealing with the determination of these. . : . . .

The second part (B) involves the aspects of our

research project and a general survey on the previous work of the various methods for the spectrophotometric determination of Mg(Il), Al(III), Mn(II) and Fe(III). The literature showed that the review articles are good background materials and nothing has been reported on the complexation