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  • 1 Chemical Sciences Division, Saha Institute of Nuclear Physics 1/AF Bidhannagar, Kolkata-700064, India
  • 2 Department of Chemistry, The University of Burdwan Burdwan 713104, India
  • 3 Department of Botany, University of Calcutta 35, Ballygunge Circular Road, Kolkata-700019, India
  • 4 Department of Botany, University of Calcutta 35, Ballygunge Circular Road, Kolkata-700019, India
  • 5 Department of Chemistry, The University of Burdwan Burdwan 713104, India
  • 6 Chemical Sciences Division, Saha Institute of Nuclear Physics 1/AF Bidhannagar, Kolkata-700064, India
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Summary  

The bioaccumulation of 198Au radionuclide, by Rhizocloniumriparium a member of Chlorophyceae has been studied. It has been observed that accumulation of gold on Rhizoclonium is almost pH independent and slightly higher at basic pH. Accumulation of gold was studied with 198Au radiotracer, 0.1, 1 and 5 ppm concentrations of gold. It has been concluded from the biochemical analysis that the gold accumulation is due to adsorption in the cellulose and not in protein, fat and carbohydrate. Accumulated gold was recovered when washed with conc. HNO3.