S. KARTHIKEYAN

Department of Physics, St Joseph’s College of Engineering, Chennai-600 119. Tamil Nadu, India

Abstract. The discharge of heavy metal wastes has many obvious impacts on aquatic systems. The objective of this investigation was to determine the effect of heavy metals nickel and chromium at lower and higher sub lethal concentrations of an edible fish Cirrhinus mrigala exposed for a period of 28 days. The impact of bioaccumulation of these heavy metals on muscle tissues of the edible fish was related to decrease in protein content. The FT-IR spectra revealed significant differences in the absorption intensities between the control and the treated tissues, pointing to a decrease in the overall protein content on muscle tissues. Also bioaccumulation and elimination of nickel and chromium in the various organs of Cirrhinus mrigala has been studied using ICP-AES technique. The study indicates that the effect of heavy metal nickel treatment is greater than that of chromium.
Key words: FTIR, heavy metals, ICP-AES, protein.

Author’s e-mail: physicskarthik@gmail.com

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