• Dr Suparna Deshmukh

The study of the absorption spectra of the complexes formed between metal ions selected for the present study viz.Cu(II), and Ni(II) and the dye-surfactant species( i.ePyrocatechol Violet and Cetyltrimethyl ammonium bromide); as ligands forms the first subject matter of the study of metal complexes. Quantitative information on complex formation is obtained by determining the composition and the stability constants of the chelates formed.Pyrocatechol Violet (PCV) is a triphenylmethane dye which forms stable complexes with CTAB and Metals under study. Dye- Surfactant complexes showed Hypsochromic Shifts while with Metal chelates a large bathochromic shift has been observed.Composition of the complexes remains unchanged in presence of CTAB as 1:1. Stability Constants has been evaluated which revealed to increase the stability of chelates in the presence of CTAB. Studies were also carried out on various analytical parameters revealed that Pyrochatechol Violet (PCV) is an effective reagent to be used for microdetermination of Cu(II) and Ni(II).

Pyrocatechol Violet, Surfactant, Hypsochromic Shift, Bathochromic Shift ,Sensitivity

"Co-ordination and Analytical Studies Of Cu(II), And Ni(II) Using Pyrocatechol Violet and CTAB As Modified Reagents", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.370-377, July-2018, Available :http://www.jetir.org/papers/JETIR1807657.pdf

"Co-ordination and Analytical Studies Of Cu(II), And Ni(II) Using Pyrocatechol Violet and CTAB As Modified Reagents", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp370-377, July-2018, Available at : http://www.jetir.org/papers/JETIR1807657.pdf