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Complex Equilibria and Spectrophotometric Determination of Copper with 4-(2-Pyridylazo)resorcinol and 4-(2-Thiazolylazo)resorcinol by Aleš Hrdlička and Marie Langová is a scholarly article available to read on EtoBox.

What is Complex Equilibria and Spectrophotometric Determination of Copper with 4-(2-Pyridylazo)resorcinol and 4-(2-Thiazolylazo)resorcinol about?

The complex equilibria of copper with 4-(2-pyridylazo)resorcinol and 4-(2-thiazolylazo)resorcinol were studied spectrophotometrically using graphical analysis and numerical treatment of the absorbance data by the PRCEK or SPEKTFOT program on a Tesla 200 computer. Of the two reagents, 4-(2-pyridylazo)resorcinol forms more complexes including the 1 : 2 complexes, with a greater bathochromic shift of λmax with respect to the reagent. Especially the CuL2-2 complex of 4-(2-pyridylazo)resorcinol with ε = 7.9 . 104 at 500 nm permits sensitive spectrophotometric determination of copper. Procedures for the spectrophotometric determination of copper in weakly alkaline media were evaluated.

Author

Aleš Hrdlička and Marie Langová

Published

1980

Language

EN