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Title: Novel Dithiocarbamates for electrochemical detection of Nickel (II) in environmental samples
Authors: Niranjan, T. 
Kanchi, Suvardhan 
Bisetty, Krishna 
Naidu, N. Venkatasubba 
Keywords: DC Polarography;Catalytic hydrogen current technique;Nickel (II);Ammonium 4-arylpiperazine-1-dithiocarbamate
Issue Date: 22-Jun-2015
Publisher: Asian Publication Corporation
Source: Niranjan, T. et al. 2015. Novel Dithiocarbamates for electrochemical detection of Nickel (II) in environmental samples. Asian Journal of Chemistry. 27(10): 3598-3604 DOI:10.14233/ajchem.2015.18883
Journal: Asian journal of chemistry (Online) 
Ammonium 4-phenylpiperazine-1-dithiocarbamate (Amm 4-PP-DTC) and ammonium 4-benzylpiperidine-1-dithiocarbamate (Amm 4-BP-DTC) were synthesized for the determination of nickel(II) using catalytic hydrogen currents (CHC’s) technique with DC Polarography. The method was based on the chelation of nickel(II) with Amm 4-PP-DTC/ Amm 4-BP-DTC in presence of NH
4 OH at pH 6.8 to produce catalytic hydrogen current at -1.50V and -1.41 V vs. SCE respectively. Optimized polarographic conditions were established by studying effect of pH, supporting electrolyte (NH4Cl), ligands and metal ion concentration and effect of adverse ions on peak height to improve the sensitivity, selectivity and detection limits of the present method. This technique is successfully applied for the analysis of nickel(II) in different matrices with recoveries ranging from 96.0-99.0 % and the results obtained were comparable with the atomic absorption spectroscopy.
ISSN: 0975-427X
DOI: 10.14233/ajchem.2015.18883
Appears in Collections:Research Publications (Applied Sciences)

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