Validation and Quantification of Some Trace Elements in Drinking Water and Wells from Turabah Province, KSA by ICP-OES

Abstract

Concentration of 12 trace elements (TEs) Na, K, Ca, Mg, Fe, Zn, B, Al, Pb, Cd, As and Sr, was determined in drinking water of local and national factories and wells in Turabah Province (KSA) by using Inductively coupled plasma-optical emission spectrometry (ICP-OES) technique after pre-concentration and acid digestion. The results show that the concentrations of Na, K, Ca, Mg, Fe, Zn, Al, Pb, Cd and As in the samples of the local factories in Turabah Province and national factories (KSA) are below the maximum level that recommended by World Health Organization (WHO) and Saudi Arabia Standards Organization (SASO).While, the concentrations of B are above the maximum level recommended by SASO. The results of the wells samples show that the concentrations of Fe, Zn, Al, Pb, Cd and As are below the maximum level that recommended by WHO and SASO while the concentrations of Na, K, Ca, Mg and B are above and below the maximum level recommended by SASO according to the source of sample. The recovery percent was found to be 97.5 -99.5%.The method was validated in terms of accuracy, precision, limit of detection (LOQ) and limit of quantification (LOD) and confirmation reliability.