Introduction of a new ZnMgAl-LTH@GCN nanosorbent in dispersive solid phase microextraction (dSP-μ-E) procedure for Pb(II) extraction

Arain M. B., SOYLAK M.

FOOD CHEMISTRY, cilt.493, 2025 (SCI-Expanded, Scopus) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 493
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.foodchem.2025.146109
  • Dergi Adı: FOOD CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, Chemical Abstracts Core, Chimica, Compendex, EMBASE, MEDLINE
  • Anahtar Kelimeler: Layered triple hydroxide (LTH), Graphitic carbon nitride (GCN), Sorbent, Dispersive solid phase microextraction, Tea, Water samples
  • Erciyes Üniversitesi Adresli: Evet

Özet

Graphitic carbon nitride (GCN) and layer triple hydroxide (LTH) were used in the development of a dispersive solid phase microextraction (dSP-mu -E) method for preconcentration of Pb(II). The new nanocomposite sorbent ZnMgAl-LTH@GCN was synthesized using a hydrothermal co-precipitation process, and characterized using various methods such as FT-IR, FE-SEM, XRD, and EDX. Analytical parameters were optimized; including pH, adsorbent amount, elute concentration/volume/time, and sample volume, which were found to be respectively, 8 pH, 5 mg, 1 mol/L, 1.5 mL, 60 s, and 35 mL. The matrix effects were also determined. The results found to be the preconcentration factor 23.3, limit of quantification (LOQ) 1.88 mu g/L and limit of detection (LOD) 0.560 mu g/ L, respectively. A validation test was conducted using CRMs to ensure appropriate recovery outcomes. The %RSD was found to be in the range of 6.12-7.72 %, remaining below the 10 % threshold. Pb(II) level was determined in tea, tap and industrial waste water samples using the new dSP-mu -E method.