PG, Department of Chemistry, Jayaraj Annapackium College for Women, Periyakulam-625601, Theni District, Tamil Nadu, India
Fluoride ion present in ground water of some areas in Theni District has been analysed using aluminium methyl orange complex by spectrophotometric determination. In this method the absorbance of methyl orange complex was measured and related to the concentration of fluoride ion in water. Present analysis of fluoride ion was compared with the values given by District Water Board. The method provides a reliable determination of fluoride in the range of 0.25–2 mg/L present in ground water. From the determination it was found that water samples contain permissible amount of fluoride ion as directed by World Health Organisation(WHO).
Fluoride, ground water, spectrophotometric method, aluminium methyl orange complex
