Novel ZnCr2O4@NDs nanocomposite for dispersive μ-solid phase extraction of nickel, cobalt, and cadmium in water, herbal tea, and fruit juice samples
Microchemical Journal, cilt.227, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 227
- Basım Tarihi: 2026
- Doi Numarası: 10.1016/j.microc.2026.118736
- Dergi Adı: Microchemical Journal
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, Chemical Abstracts Core, Chimica, Index Islamicus, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO)
- Anahtar Kelimeler: Dispersive μ-solid phase extraction, Fruit juice, Heavy metals, Herbal tea, Nanodiamonds, Spinel oxide
- Erciyes Üniversitesi Adresli: Evet
Özet
In this study, zinc chromite spinel oxide (ZnCr2O4) modified activated nanodiamonds (ZnCr2O4@NDs), as a new generation of carbon-based nanocomposites, were synthesized and characterized. To assess the accuracy of the structure, some techniques such as Fourier-Transform Infrared Spectroscopy, Field Emission Scanning Electron Microscopy, Energy Dispersive X-ray Spectroscopy, X-Ray diffraction, and Tunneling Electron Microscopy were utilized. Application of ZnCr2O4 nanodiamonds with dispersive μ-solid phase extraction (DμSPE) before flow injection analysis coupled microwave plasma atomic emission spectrometry (FIA-MP-AES) presented significant results for preconcentration/separation and determination of trace and ultra-trace levels of nickel, cadmium, and cobalt ions. The linear ranges of 0.05–1000 (μg Kg−1) for tap water, green tea, and chamomile, and 0.05–750 (μg Kg−1) for Hallilroud river and thyme, 0.05–500 (μg Kg−1) for black tea, apple juice, and peach juice for Co2+, Cd2+, and Ni2+. The LOD values of 0.0150–0.0155 (μg Kg−1) were obtained for nickel, cobalt, and cadmium. The intra-day precision (repeatability) and the inter-day precision (reproducibility) (%) were ≤ 2.5 and ≤ 2.9, respectively. The applicability of the method was explored in water, herbal teas, and fruit juice samples, which represented recoveries (%) of 88.0–100.0. Furthermore, application of BAGI, AGREE, AGREEprep, and CaFRI metric tools ratified the greenness of the method.