ISSN

0974-4150 (Online)
0974-4169 (Print)


Author(s): Shalini Verma, S. P Mathur, Savita Verma

Email(s): shaqrs@yahoo.com , sv52898@gmail.com , shalini.3203@cgc.edu.in

DOI: 10.5958/0974-4150.2019.00039.7   

Address: Shalini Verma1, S. P Mathur2, Savita Verma3
1Department of Biotechnology, Chandigarh Group of Colleges, Landran, Mohali (Punjab)
2Department of Pure and Applied Chemistry, Maharshi Dayanad Saraswati University, Ajmer
3Department of Chemistry, Sophia Girls College Ajmer
*Corresponding Author

Published In:   Volume - 12,      Issue - 4,     Year - 2019


ABSTRACT:
A new method for the photometric determination of trace amount of cobalt (II) with 1-benzoyl-3-(2-pyrimidyl) thiourea is described. Cobalt (II) forms a stable water insoluble complex with 1-benzoyl-3-(2-pyrimidyl) thiourea at pH 4.0 which is extracted by adsorption on prepared polyurethane foam. It is then dissolved in 10 ml of chloroform and maximum absorbance is observed at 460 nm. Beer’s law is verified over the concentration range 20-120 µg of cobalt (II) in 10 ml chloroform. The molar absorptivity is found to be 3.38 x 104 dm3 mol-1 cm-1 and sensitivity being 0.016 µg cm-2 of cobalt (II) for the absorbance of 0.001. The effect of analytical parameters i.e. pH, buffer solution. Reagent concentration, quantity of adsorbent and diverse metal ions are investigated to incorporate the optimum conditions in the present study


Cite this article:
Shalini Verma, S. P Mathur, Savita Verma. Photometric Determination of Cobalt (II) after Adsorption of its 1-Benzoyl-3-(2-pyrimidyl) thiourea Complex on Polyurethane Foam. Asian J. Research Chem. 2019; 12(4):208-212. doi: 10.5958/0974-4150.2019.00039.7

Cite(Electronic):
Shalini Verma, S. P Mathur, Savita Verma. Photometric Determination of Cobalt (II) after Adsorption of its 1-Benzoyl-3-(2-pyrimidyl) thiourea Complex on Polyurethane Foam. Asian J. Research Chem. 2019; 12(4):208-212. doi: 10.5958/0974-4150.2019.00039.7   Available on: https://ajrconline.org/AbstractView.aspx?PID=2019-12-4-4


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