EXTRACTION-ABSORPTIOMETRIC DETERMINATION OF COPPER BY BRILLIANT GREEN IN SULPHURIC ACID SOLUTIONS IN NATURAL AND WASTE WATERS

Authors

  • S. H. Mangasaryan Chair of Inorganic and Analytical Chemistry, YSU, Armenia
  • Sch. V. Mkrtchyan Chair of Inorganic and Analytical Chemistry, YSU, Armenia
  • Zh. M. Arstamyan Chair of Inorganic and Analytical Chemistry, YSU, Armenia

DOI:

https://doi.org/10.46991/PYSU:B/2007.41.3.103

Keywords:

Brilliant Green, cupric chloride anionic complex, threephenilmethane, waste waters

Abstract

The interaction of cupric chloride anionic complex with threephenilmethane basic dye Brilliant Green has been studied. The colored ionic associate could be extracted by benzole in 0.5–1.0 N sulphuric acid solutions. The method is based on the reduction of copper (II) to copper (I) with ascorbic acid.The calibration graph obeyed Beer’s law over the range 0.2–6.25 mcg/mL copper and the apparent molar absorptivity of the extract at 625 nm was (82300 ± 700)L·mol-1·сm-1. The molar ratio between copper (I) chloride complex and Brilliant Green in ionic associate has been determined by Asmus straight line and shifts on equilibrium methods which 1:1. The influence of interfering elements on the determination of copper is used in natural and waste waters. The proposed method is very sensitive than those reported earlier.

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Published

2007-10-12

How to Cite

Mangasaryan, S. H., Sch. V. Mkrtchyan, and Zh. M. Arstamyan. 2007. “EXTRACTION-ABSORPTIOMETRIC DETERMINATION OF COPPER BY BRILLIANT GREEN IN SULPHURIC ACID SOLUTIONS IN NATURAL AND WASTE WATERS”. Proceedings of the YSU B: Chemical and Biological Sciences 41 (3 (214):103-6. https://doi.org/10.46991/PYSU:B/2007.41.3.103.

Issue

Vol. 41 No. 3 (214) (2007)

Section

Chemistry

License

Copyright (c) 2007 Proceedings of the YSU

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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