Automatic Method for Measuring Copper and Lead in Biological Samples
Author Information
Author(s): Andr6s Izquierdo, M. D. Luquede Castro, Miguel Valcircel
Primary Institution: Department of Analytical Chemistry, Faculty of Sciences, University of Córdoba, Spain
Hypothesis
An automatic-continuous method for the simultaneous determination of copper and lead based on flow injection analysis and stripping voltammetry is proposed.
Conclusion
The method allows for the determination of copper and lead at low levels with results in agreement with certified values.
Supporting Evidence
- The method can determine analytes at the ng/ml level with good precision.
- Linear ranges for copper and lead were established between 0.64 to 64.0 ng/ml and 2.1 to 62.2 ng/ml, respectively.
- The method was validated using certified reference materials.
- Repeatability of the method was confirmed with relative standard deviations smaller than 4%.
Takeaway
This study shows a new way to quickly and accurately measure tiny amounts of copper and lead in biological samples using special equipment.
Methodology
The method uses flow injection analysis and anodic stripping voltammetry to measure copper and lead in biological samples.
Limitations
Better results can be obtained in a clean laboratory, which may not always be feasible.
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