A Straightforward Technique for Determining Phosphorus in Foodstuffs Using High-Resolution Continuum Source Electrothermal Atomic Absorption Spectrometry (HR-CS ETAAS)

• Autoři: ZVĚŘINA Ondřej
• Rok publikování: 2025
• Druh: Článek v odborném periodiku
• Časopis / Zdroj: Analytical Letters
• Fakulta / Pracoviště MU: Lékařská fakulta
• www: https://www.tandfonline.com/doi/full/10.1080/00032719.2025.2527258
• Doi: https://doi.org/10.1080/00032719.2025.2527258
• Klíčová slova: Foodstuffs; high-resolution continuum source electrothermal atomic absorption spectrometry; HR-CS ETAAS; phosphorus; spectral interferences
• Popis: This study presents a high-resolution continuum source electrothermal atomic absorption spectrometry (HR-CS ETAAS) method for the determination of total phosphorus in food and plant samples. The method, based on atomic absorption at the 213.618?nm spectral line, demonstrates adequate sensitivity with a sub-mg/L limit of detection and a wide calibration range. Under optimized atomization conditions and with an excess of Pd/Mg(NO3)2 modifier, spectral interferences are effectively suppressed, making the procedure robust and suitable for various matrices. The method’s performance and applicability were demonstrated through the analysis of five certified reference materials.

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