Validación de método para cadmio en suelos por absorción atómica

Carlos Guillermo Ayala Moreno

doi:10.48204/j.guacamaya.v11n1.a11546

Submitted October 26, 2026

Published 2026-10-28

Artículos

Vol. 11 No. 1 (2026): Revista Científica Guacamaya

Validation of soil cadmium method by atomic absorption

Carlos Guillermo Ayala Moreno⁺⁻

DOI https://doi.org/10.48204/j.guacamaya.v11n1.a11546

PDF (Español (España))

References

DOI: 10.48204/j.guacamaya.v11n1.a11546

Published: 2026-10-28

How to Cite

Ayala Moreno, C. G. (2026). Validation of soil cadmium method by atomic absorption. Revista Científica Guacamaya, 11(1), 274–281. https://doi.org/10.48204/j.guacamaya.v11n1.a11546

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

Abstract

Cadmium contamination in soils poses risks to human health and the environment due to its toxicity, persistence and bioaccumulation. This study validated an analytical methodology for cadmium determination in soils using continuous-source flame atomic absorption spectroscopy, aligned with EPA 3050A guidelines and ISO/IEC 17025:2017 performance requirements. Selectivity, linearity, sensitivity, detection and quantification limits, precision, accuracy and robustness were assessed. The method showed excellent linearity (R² = 0.9999), a LOD of 0.00095 mg/L and recoveries between 94% and 102%, with variability below the Horwitz expected limits. Overall, the results support the method’s suitability for routine cadmium analysis in soils within the IDIAP Soil Laboratory quality assurance framework.

Downloads

Download data is not yet available.

References

Büyükp?nar, Ç., Bodur, S., Yaz?c?, E., Tekin, Z., San, N., Komesli, O. T., & Bak?rdere, S. (2021). An accurate analytical method for the determination of cadmium: Ultraviolet based photochemical vapor generation-slotted quartz tube-based atom trap-flame atomic absorption spectrophotometry. Measurement, 176, 109192. https://doi.org/10.1016/j.measurement.2021.109192
Cantwell, H. (Ed.). (2025). The Fitness for Purpose of Analytical Methods: A Laboratory Guide to Method Validation and Related Topics (3rd ed.). Eurachem.
Chen, K., Mou, P., Zhu, A., Chen, P., Gao, G., Wang, X., Feng, X. & Yu, C.M. (2023). A comparative study of different methods for the determination of cadmium in various tissues of ramie (Boehmeria nivea L.). Environmental Monitoring and Assessment, 195, 1009. https://doi.org/10.1007/s10661-023-11601-2
Environmental Protection Agency. (1996). Method 3050B: Acid digestion of sediments, sludges, and soils. U.S. EPA.
FAO & UNEP. (2021). Global assessment of soil pollution: Report. Food and Agriculture Organization of the United Nations and United Nations Environment Programme.
Horwitz, W., Kamps, L. R., & Boyer, K. W. (1980). Quality assurance in the analysis of foods and trace constituents. Journal of the Association of Official Analytical Chemists, 63(6), https://doi.org/10.1093/jaoac/63.6.1344
International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use. (2023). ICH harmonised guideline: Validation of analytical procedures Q2(R2). https://database.ich.org/sites/default/files/ICH_Q2(R2)_Guideline_2023_1130.pdf
International Organization for Standardization. (2017). ISO/IEC 17025:2017: General requirements for the competence of testing and calibration laboratories. ISO. https://www.iso.org/standard/66912.html
Li, Z., Liang, Y., Hu, H., Shaheen, S. M., Zhong, H., Tack, F. M. G., Wu, M., Li, Y.-F., Gao, Y., Rinklebe, J., & Zhao, J. (2021). Speciation, transportation, and pathways of cadmium in soil-rice systems: A review on the environmental implications and remediation approaches for food safety. Journal of Hazardous Materials, 405, 124166.
Zhao, H.-L., Cai, L.-L., & Wu, G. (2023). On polarization resolved laser induced breakdown spectroscopy combined with support-vector regression to improve the accuracy of soil heavy-metal (Cd) detection. Chinese Journal of Analytical Chemistry, 51(2), 100176. https://doi.org/10.1016/j.cjac.2022.100176
Zheng, S. et al. (2023). Derivation and validation of soil cadmium thresholds for the safe farmland production of vegetables in high geological background area. Science of the Total Environment, 873, 162171. https://doi.org/10.1016/j.scitotenv.2023.162171