Keywords
cobalt
nickel
dithiocarbamate
spectrophotometry
How to Cite
Abstract
A direct spectrophotometric method for simultaneous determination of Co(II) and Ni(II), with diethanoldithiocarbamate (DEDC) as complexing agent, is proposed using the maximum absorption at 360 and 638 nm (Co(II)/DEDC) and 390 nm (Ni/DEDC). Adjusting the best metal/ligand ratio, supporting eletrolite, pH, and time of analysis, linear analytical curves from 1.0 10-6-4.0 10-4 for Co(II) in the presence of Ni 1.0 10-6-1.0 10-4 mol L-1 were observed. No further treatment or calculation processes have been necessary. Recoveries in different mixing ratios were of 99%. Interference of Fe(III), Cu(II), Zn(II) and Cd(II), and anions as NO3-, Cl-, ClO4-, citrate and phosphate has been evaluated. The method was applied to natural waters spiked with the cations.References
P. A. Antunes, E. T. G. Cavalheiro, S. T. Breviglieri and G. O. Chierice, Quím. Nova, 21 (1998) 289.
V. Kaur, A. K. Malik, Talanta, 73 (2007) 425.
T. Khayamian, A. A. Ensafi, B. Hemmateenejad, Talanta, 49 (1999) 587.
L. Ow, H. Sy, Anal. Chim. Acta, 280 (1993) 269.
V. T. Yilmaz , T. K. Yazicilar , H. Cesur, R. Ozkanca, F. Z. Maras. Synth. React. Inorg. Met.-Org., Nano-Met. Chem., 33 (2003) 589.
Y. Li, Y. Jiang, X.-P. Yan. Talanta, 64 (2004) 758.
I. Narin, M. Soylak, Anal. Chim. Acta, 493 (2003) 205.
T. Stafilov, D. Zendelovska, G. Pavlovska, K. Cundeva. Spectrochim. Acta Part B, 57 (2002) 907.
A. Caldera, E. Gomes, J. manuel-Estrela, V. Cerda, Anal. Chim. Acta, 272 (1993) 339.
E. P. Parkhomenko, N. F. falendysh and A. T. Pilipenko, J.Water Chem.Technol., 12 (1991) 59.
M. blanco, J. I. H. Coelho, S. maspoch and J. Riba, Quim. Anal. (Barcelona), 9 (1990) 269.
X. Ping, Yankuang Ceshi, 8 (1989) 317.
M. H. Lopes, J. M. C. Gomes, J. Medinilla, F. G. Sanches, Quim. Anal. (Barcelona), 7 (1988) 341.
G. D. Thorn and R. A Ludwig, “The Dithiocarbamates and Related Compounds”, Elsevier; Amsterdam (1962).
A. K. Ramrakhyani and R. S. Shukla, J. Indian Chem., 57 (1980) 856.
C. H. G. Bushell, M. Molnarich, Trans Amer. I.M.M.E., 734 (1954) 2055.
A. Hulanicki, Talanta, 14 (1967) 1371.
E. T. G. Cavalheiro, M. Ionashiro, G. Marino, S. T. Breviglieri, G. O. Chierice, Transition Met. Chem., 25 (2000) 69.
P. J. Elwing, J. M. Markowitz, I. Rosenthal, Anal. Chem., 28 (1956) 1179.
S. T. Breviglieri, E. T. G. Cavalheiro, G. O. Chierice, Polyhedron, 15 (1995) 2027.
S. J. Joris, K. I. Aspila and C. L. Chakrabarti, J. Phys. Chem., 74 (1970) 860.
H. Yoshida, M. Yamamoto, S. Hikine, Bunseki Kagaku, 11 (1962) 197.
M. L. Shankaranarayana, C. C. Patel, Acta. Chem. Scand., 19 (1965) 1113.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright (c) 2018 Eclética Química Journal