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Method development for arsenic analysis by modification in spectrophotometric technique
Drinking Water Engineering and Science
Arsenic is a non-metallic constituent, present naturally in groundwater due to some minerals and rocks. Arsenic is not geologically uncommon and occurs in natural water as arsenate and arsenite. Additionally, arsenic may occur from industrial discharges or insecticide application. World Health Organization (WHO) and Pakistan Standard Quality Control Authority have recommended a permissible limit of 10 ppb for arsenic in drinking water. Arsenic at lower concentrations can be determined in waterdoi:10.5194/dwes-5-1-2012 fatcat:dupniazsyvhgvdsg63ah4ihv6i