Şaylan, MeltemDemirel, RabiaFırat Ayyıldız, MerveChormey, Doste SelaliÇetin, GültenBakırdere, Sezgin2022-11-242022-11-242023Şaylan, M., Demirel, R., Fırat Ayyıldız, M., Chormey, D. S., Çetin, G. & Bakırdere, S. (2023). Nickel hydroxide nanoflower-based dispersive solid-phase extraction of copper from water matrix. Environmental Monitoring and Assessment, 195(1), pp. 1-11. https://doi.org/10.1007/s10661-022-10653-00167-63691573-2959https://doi.org/10.1007/s10661-022-10653-0https://hdl.handle.net/20.500.13055/318Yıldız Technical University -- FBA-2021–4725In this work, a dispersive solid-phase extraction method based on Ni(OH)2 nanoflowers (Ni(OH)2-NFs-DSPE) was developed to separate and preconcentrate copper ions from tap water samples for determination by flame atomic absorption spectrometry (FAAS). Ni(OH)2-NFs was synthesized using a homogeneous precipitation technique and used as sorbent for copper preconcentration. X-ray diffraction, scanning electron microscopy, and Fourier-transform infrared spectroscopy were used to characterize the synthesized sorbent. All experimental variables were carefully optimized to achieve a high enhancement factor of 107.5-folds with respect to the detection sensitivity of the conventional FAAS. The proposed method's analytical parameters including LOD, LOQ, and linear range were determined as 1.33 μg/L, 4.42 μg/L, and 3.0-40 μg/L, respectively. To assess the applicability and reliability of the developed method, optimal conditions were applied to tap water samples and satisfactory percent recoveries (94-103%) were obtained for the samples spiked at 20 and 30 μg/L. This validated the accuracy and feasibility of the developed method to real samples. The developed method can be described as a simple, efficient, and rapid analytical approach for the accurate determination of trace copper ions in water samples.eninfo:eu-repo/semantics/closedAccessCopperNi(OH)2 NanoflowersDispersive Solid-Phase ExtractionFlame Atomic Absorption SpectrometryTap WaterArticle10.1007/s10661-022-10653-01951111Q3WOS:0008862106000042-s2.0-85142262364PMID: 36409393Q2