Evaluation and Quantification of Some Trace Elements in Drinking Water by ICP-OES

Abstract

Trace amount of elements are common in water, some of these elements may be hazardous to human health and others may be vital to human body. Using inductively coupled plasma-optical emission spectrometry (ICP-OES) technique after 10-fold pre-concentration and acid digestion, the concentrations of 10 trace elements samples (TEs) Ba, Cu, Cr, Ni, V, Mn, Mo, Ag, P and Si were determined in drinking water in Turabah Province (Saudi Arabia). The concentrations of Cu, Cr, Ni, V, Mn, Mo, Ag and P in the samples of local and national factories were found to be below the maximum level that that recommended by World Health Organization (WHO) and Saudi Arabia Standards Organization (SASO). While, the concentrations of Ba was above and below the maximum level that recommended by WHO and SASO according to the sample source. The concentrations of Ba, Cu, Cr, Ni, V, Mo, Ag, and P in the wells samples were below the maximum level, while the concentrations of Mn was above the maximum level. The analysis method was validated in terms of accuracy, precision, limit of detection (LOQ) and limit of quantification (LOD) and confirmation reliability. The recovery percent was found to be 97.5 -99.7%.