JOINT SPECTROPHOTOMETRIC DETERMINATION OF COPPER (II) AND NICKEL (II) BY TRILON B 

Vernigora Alexander Nikolaevich, Candidate of biological sciences, associate professor, sub-department of chemistry and theory and methodology of chemistry teaching, Penza State University (40 Krasnaya street, Penza, Russia), vanvan7@yandex.ru
Volkova Natalija Valentinovna, Candidate of biological sciences, associate professor, head of sub-department of chemistry and theory and methodology of chemistry teaching, Penza State University (40 Krasnaya street, Penza, Russia), balikovan@mail.ru
Zhevlakova Anastasija Aleksandrovna, Student, Penza State University (40 Krasnaya street, Penza, Russia), n.jevlgubar@mail.ru
Gus’kova Ekaterina Nikolaevna, Student, Penza State University (40 Krasnaya street, Penza, Russia) E-mail: drcatryn@yandex.ru

543.4

10.21685/2307-9150-2017-4-8

Background. Since the waste of galvanic production often contains solutions cocomposed of copper (II) and nickel (II) simultaneously in sufficiently high concentrations, the aim of this work is to develop a method of spectrophotometric determination of copper (II) and nickel (II) at joint presence in the form of complexes with Trilon B using the Vierordt method.
Materials and methods. Absorption spectra were recorded with a spectrophotometer Specord S40. The spectral data were processed via the Vierordt method.  
Results. The conducted research has allowed to develop a method for simultaneous quantitative determination of relatively high concentrations of nickel (II) and copper (II) in a solution.
Conclusions. The authors have developed a simple, rapid and cheap method of simultaneous spectrophotometric determination of Nickel (II) concentration from 0,5 to 3 g/l and copper (II) concentration from 0,1 to 1,7 g/l at joint presence in a solution with a relative error not exceeding 10 %.

nickel (II), copper (II), Trilon B, spectrophotometric determination, Vierordt method

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