Arsenic Speciation in Beverages
Author Information
Author(s): E. Moreno, C. Cámara, W.T. Corns, D.W. Bryce, P.B. Stockwell
Primary Institution: University of Complutense, Madrid, Spain
Hypothesis
The study aims to apply chromatographic separation for the determination of arsenic species in mineral waters and wines.
Conclusion
The proposed method is accurate and sensitive enough to carry out arsenic speciation in wines and mineral water.
Supporting Evidence
- The method showed good sensitivity, selectivity, precision, and accuracy for arsenic species detection.
- Detection limits were found to be between 0.16 and 2.9 ng/ml for various arsenic species.
- The method is free from matrix interferences as shown by standard addition studies.
- Arsenic species were identified based on retention time during chromatographic analysis.
Takeaway
This study developed a method to find different types of arsenic in drinks, which is important because some forms are more harmful than others.
Methodology
The study used strong anion exchange high-performance liquid chromatography coupled with hydride generation atomic fluorescence spectrometry.
Limitations
No certified reference materials for arsenic species were available, which may affect validation.
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