Akademik Veri Yönetim Sistemi
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY, 2025 (SCI-Expanded)
In this study, a novel methoxy-substituted arylhydrazone-based Schiff base ligand was synthesised and covalently immobilised onto silica to prepare a new functional sorbent material, reported here for the first time. The structural and morphological properties of the sorbent were characterised by FT-IR,(1) H-NMR, SEM, and EDX techniques. This newly designed sorbent was applied in an ultrasound-assisted dispersive micro solid-phase extraction (UA-DMSPE) method for the selective preconcentration of Cu(II), Cd(II), and As(III) ions from acid-digested soil and leafy vegetable samples, before analysis ICP-OES. Key extraction parameters were systematically optimised using one-way ANOVA, which revealed statistically significant effects for all tested variables. Under optimised conditions, the method demonstrated excellent analytical performance with low limits of detection (Cu: 0.45, Cd: 0.30, As: 0.50 mu g L-1), wide linear ranges (1-300 mu g L-1), high precision (RSD < 2.1%), and recoveries above 95%. Matrix effect evaluations showed minimal signal suppression or enhancement, confirming the method's robustness in real sample matrices. Furthermore, the sorbent retained efficient performance over three reuse cycles without significant loss in recovery. The proposed method offers a reliable, sensitive, and environmentally friendly alternative for the trace-level determination of toxic metals in complex environmental samples, highlighting the potential of this novel sorbent for routine analytical applications.