Hierarchical MnSb₂O₆ Particles for Dispersive Solid-Phase Extraction of Co(II) from Wastewater by Flame Atomic Absorption Spectrometry

Authors : Dilges Baskin

Pages : 907-921

Doi:10.53433/yyufbed.1718800

View : 101 | Download : 191

Publication Date : 2025-12-24

Article Type : Research Paper

Abstract :The efficacy of hierarchical MnSb₂O₆ magnetic flower-shaped particles (MFSP) as adsorbents for the determination of metal ions using flame atomic absorption spectrometry (FAAS) was evaluated through dispersive solid-phase extraction (DSPE) in this study. Key parameters, including pH, sorbent amount, mixing type and duration, eluent type and volume, and sorbent type (magnetic and non-magnetic) were optimized to improve DSPE–FAAS performance. The MFSP–DSPE–FAAS method demonstrated a dynamic linear range of 5.0–100 ng mL⁻¹ for Co²⁺ ions with a correlation coefficient of 0.9996. Moreover, the magnetic sorbent–DSPE–FAAS method exhibited an 86-fold increase in sensitivity for Co²⁺ compared to FAAS alone, underscoring the significant contribution of the hierarchical magnetic flower-shaped particles in achieving selective and efficient adsorption. A recovery study using a wastewater (domestic effluent) sample from the General Directorate of VASKİ (Van Water and Sewerage Administration) yielded recoveries between 94% and 108%. This study highlights, for the first time, the combined use of magnetic MnSb₂O₆ and non-magnetic SbO₂ flower-shaped particles to reveal the role of magnetic properties in DSPE performance and to validate their applicability in real wastewater analysis. The developed method not only addressed the challenges posed by complex environmental matrices but also demonstrated the crucial role of magnetic properties in facilitating efficient metal ion adsorption.
Keywords : Alevli atomik absorpsiyon spektrometrisi, Çevresel analiz, Dağılımlı katı faz ekstraksiyonu, Kobalt tayini

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