Potentiometric determination of fluoride and iodide in natural and processed waters of Bahrain using ion-selective electrodes
Ali-Mohamed A.Y., Jamali S.G.A.
To assess the natural availability of fluoride and iodide in Bahrain, natural and processed waters which included ground water, tap waters, Adari Lake water and streams and waters from reverse osmosis (RO), ion-exchange (IE), multistage flash desalination (MSF) and solar desalination (SD) plants, in addition to blended waters, were monitored for 3 months (Oct.-Dec. 1985). The fluoride ion concentration ranges from 0.45 to 1.51 � 0.26 mg dm-3 in natural waters; 0.003 to 0.33 � 0.016 mg dm-3 in the processed waters and 0.15 to 0.24 � 0.095 mg dm-3 in the blended waters. As for the iodide ion, concentration ranges from 0.02 to 1.08 � 0.07 mg dm-3 in natural waters; 0.01 to 0.02 � 0.002 mg dm-3 in both processed and blended water. � 1989.