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Title: Adsorptive stripping voltammetric determination of nickel(II) using N-2-pyridylbenzamidine as a complexing reagent
Authors: Mahajan, R K
Dhawan, P
Issue Date: May-2002
Publisher: NISCAIR-CSIR, India
Abstract: An adsorptive stripping voltammetric method for the trace measurement of ni ckel(II) based on the use of N-2-pyridy lbenzamidine as the complexing agent at hanging mercury drop electrode in 0.8 M NH4Cl/NH3 buffer of pH 9.6 is described. Variable factors affecting the response, i.e., the concentration of Ligand, pH, adsorption potential and adsorption time are assessed and optimized. The calibration curve for nickel(II) is linear over the range 5.0×10- 9- 5.0×10-8 M with accumulation time of 180 s at -0.4 V vs Ag/ AgCl. The method has been applied for the determination of nickel(II) in urine samples of exposed workers of nickel plating industries.  
Page(s): 981-984
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.41A(05) [May 2002]

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