Fabrication of water hyacinth biopolymer sponge decorated with nickel/aluminum layered double hydroxide for efficient extraction sulfonamide residual levels

Abstract

This present work explores the use of a simple and cost-effective biosorbent for simultaneous extraction/preconcentration of sulfonamide residues. The prepared material was first times used in micro-SPE for sulfonamide residues analysis followed by HPLC-PDA determination. The water hyacinth biopolymer decorated with Ni/Al-LDH can be prepared in a few minutes under mild condition. To obtain maximum extraction efficiencies, optimization was statistically performed. At the selected conditions, the wide linearity was received at a concentration range of 9–3000 μg L^–1 (R² ≥0.98). Low limit of detection (1.0–3.0 μg L^–1) and high enrichment factors of up to 65.71 folds were obtained. For all analytes, acceptable recoveries of various matrices were received in the range of 67.3 % and 114.6 %. The use of these three metric tools helps evaluate the environmental friendliness of the procedure, enhancing its safety for the environment. Finally, the investigated procedure provides a potential alternative for the trace level contamination of sulfonamide residues in water, honey, milk and shrimp matrices.