A NOVEL SPECTROPHOTOMETRIC METHOD FOR THE MICRO DETERMINATION OF MERCURY (II)

The authors reported a new reagent namely Anthrone phenylhydrazone (APH) for the analytical determination of mercury (II) in water samples. Mercury (II) forms a yellow colored complex with APH in a media of pH 7. The method can be conveniently used for the determination of mercury (II) in the concentration range 0.8146-8.1456 μg mL–1. The molar absorptivity and Sandell`s sensitivity were found to be 1.267×104 L moL–1 cm–1 and 0.00789 μg cm2 respectively. The proposed method was found to be selective, linear (R > 0.99), accurate (recovery = <99.6%) and precise (RSD < 1.1%) in the reported linear concentration range.