Journal of Environmental Analytical Chemistry

Chembeti Giridhar

Publications

• Research Article
  Sensitive Determination of Nickel (II) using Catalytic Hydrogen Wave in the Presence of Dithiocarbamates at DME
  Author(s): Chembeti Giridhar, Suvardhan Kanchi, Thondavada Niranjan, Krishna Bisetty and Nuthalapati Venkatasubba NaiduChembeti Giridhar, Suvardhan Kanchi, Thondavada Niranjan, Krishna Bisetty and Nuthalapati Venkatasubba Naidu
  
  Two new ligands, ammonium 2,6-dimethylmorpholine dithiocarbamate and ammonium 3-methylpiperidine dithiocarbamate were synthesized for the determination of nickel (II) in various environmental samples. The method was based on chelation of nickel (II) with ADMM-DTC/AMP-DTC in presence of NH4OH at pH 6.4 to produce catalytic hydrogen currents at -1.30V and -1.41 V vs SCE respectively and prior detected by DC polarography at Dropping Mercury Electrode (DME). Optimized polarographic conditions were established by studying effect of pH, supporting electrolyte, ligand and metal ion concentrations and effect of adverse ions on peak height to improve the sensitivity, selectivity and detection limits of the present method. The present technique was successfully applied for the analysis of nickel (II) in different matrices with recoveries ranging from 97.00 - 99.00% and the results obtained were.. Read More»
  DOI: 10.4172/2380-2391.1000108

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