A selective spectrophotometric method for determination of copper with ferron
Talanta
|February 1, 1987
Summary
This study presents a selective spectrophotometric method for determining copper using the copper-ferron complex. The method allows for accurate copper quantification up to 8 microg/ml with minimal interference from other elements.
Area of Science:
- Analytical Chemistry
- Spectrophotometry
Background:
- Accurate quantification of copper is crucial in various scientific fields.
- Existing methods for copper determination may lack selectivity or sensitivity.
Purpose of the Study:
- To develop a selective and sensitive spectrophotometric method for copper determination.
- To investigate the complexation and extraction behavior of copper.
Main Methods:
- Copper was complexed with ferron.
- The copper-ferron complex was extracted using tribenzylamine in chloroform.
- Absorbance was measured spectrophotometrically at 410 nm.
Main Results:
- The method demonstrated selectivity for copper, with only molybdenum interfering among 30 tested elements.
- Beer's law was obeyed for copper concentrations up to 8 microg/ml.
- The stoichiometry of the extracted complex was determined to be 1:2:2 (copper:ferron:tribenzylamine).
Conclusions:
- The developed spectrophotometric method offers a selective and sensitive approach for copper determination.
- The method is suitable for quantifying copper in samples where interference from other elements is a concern.
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