Simultaneous absorptiometric determination of copper, nickel, iron and cobalt in refinery process streams : potential on-line application.
Date
2005-12
Authors
Archery, Evelyn
Journal Title
Journal ISSN
Volume Title
Publisher
Stellenbosch : University of Stellenbosch
Abstract
A method for the simultaneous spectrophotometric determination Cu(aq)2+, Ni(aq)2+,
Co(aq)2+, and Fe(aq)2+, 3+ in refinery process streams based on multiwavelength analysis
is proposed.
The individual concentrations of the metallic ions present in quaternary mixtures was
achieved by using molar absorptivities of each element at the wavelength of interest1
solving a simultaneous equation.
A calibration model was setup simulating the refinery. The concentration of the elements
predicted here were then used to predict the elements in an unknown sample.
Simultaneous multicomponent determination of Cu2+, Ni2+, and Co2+ in process streams is
possible. A good comparison of the laboratory analysis to the new method is proved.
Description
Thesis (MSc (Chemistry and Polymer Science))--University of Stellenbosch, 2005.
Keywords
Adsorption, Metal refining, Online analytical methods, Analytical chemistry, Dissertations -- Chemistry, Theses -- Chemistry