Trace Analysis of Scorodite Mineral for its Osmium and Other Metals Content

Abstract

Electroanalytical methods, i.e., direct current polarography (DCP), differential pulse polarography (DPP) and differential pulse anodic stripping voltammetry (DPASV) were developed for the trace determination of osmium and other metals in scorodite mineral samples. The analysis of trace metals was performed in two different supporting electrolytes, viz. 0.1 Μ (NH 4 ) 2 tartrate and 0.1M HCl. The results indicated the presence of Tl + (31.78), Sb 3+ (374.99), Zn 2+ (1.45), Fe 3+ (155.90), Os 8+ (1.36) and As 1+ (2.40) mg.g"' in the sample. The method of standard addition was used for quantitative analysis. The accuracy of the methods was verified by comparing the observed results with those obtained using atomic absorption spectrometric (AAS) technique. Brought to you by | Purdue University Libraries Authenticated Download Date | 6/17/15 12:50 AM

Profiling the surface water around Odeama Community of the Niger Delta area of Nigeria

“…Biological oxygen demand and chemical oxygen demand in water bodies are indicators of organic pollution (Edori et al, 2019). Polynuclear aromatic hydrocarbons (PAHs), benzene, toluene, ethylbenzene, and heavy metals are constituents of crude oil released into the environment as a result of oil spillage (Tamrakar and Pitre, 2000;Asejeje et al, 2021;Davies and Abolude, 2016). It is paramount that the concentration of these constituents is accessed in studies conducted in oil-producing communities to investigate the anthropogenic influence on water quality because of their toxicity which poses threats to the environment and health of humans.…”