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Articles by M. Datta
Total Records ( 1 ) for M. Datta
  M. Datta , S. Mittal and D. Goyal
  Pseudomonas striata cell mass was immobilized in polyvinylchloride (PVC), a neutral carrier to prepare zinc selective membranes using Dibutyl-phthalate as the plasticizer. Membranes were prepared using 1, 2, 3, 5 and 7% of bacterial biomass, of which the highest response was obtained for 5%. Potentiometric response of the electrode was studied for Zn, Cd and Cu in the concentration range of 10-7 to 10-1 M. A linear trend between the electrode response and the varying metal concentrations was seen only for Zn2+ ions in the range of 10-4 to 10-1 M. Calibration slope of 22 mV/decade and detection limit of 510-4 M was obtained for zinc. Electrode showed a sharp response time of 6 sec and pH optima of 3. Thus, the PVC membrane containing the bacterial biomass was found to selectively bind the Zn2+ ions and generate the corresponding potential response at different zinc concentrations.
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