Reduced graphene oxide decorated NiCo2(OH)6 nanoflowers for vortexed assisted dispersive µ-solid-phase extraction of organophosphorus pesticides in baby food cereal, rice and wheat flour

Shirani M., Poor M. A., ÖZALP Ö., Ghaffari M., SOYLAK M.

Journal of Chromatography A, cilt.1733, 2024 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1733
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1016/j.chroma.2024.465277
  • Dergi Adı: Journal of Chromatography A
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Analytical Abstracts, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, Chemical Abstracts Core, Chimica, Compendex, Environment Index, Food Science & Technology Abstracts, MEDLINE, Pollution Abstracts, Veterinary Science Database
  • Anahtar Kelimeler: Baby food cereal, Dispersive µ-solid-phase organophosphorus pesticides, NiCo2(OH)6 nanoflowers, Reduced graphene oxide, Rice flour, Vortexed assisted, Wheat flour
  • Erciyes Üniversitesi Adresli: Evet

Özet

Food safety is an important issue to protect humane health and improve the life quality. Hence, analysis of the possible contaminants in food samples is essential. A rapid and efficient vortexed-assisted dispersive µ-solid-phase extraction coupled with gas chromatography-mass spectrometry was proposed for simultaneous separation/preconcentration and determination of five commonly used organophosphorus pesticides. Reduced graphene oxide decorated NiCo2(OH)6 nanoflowers as a novel nanostructure was synthetized and introduced for separation of the target pesticides from the wheat flour, rice flour, and baby food cereal samples. The characterization of the nanoflowers was accomplished by SEM-EDX, XRD, and FT-IR techniques. The main factors including pH, the amount of nanoflower, the volume of sample solution, salt concentration (ionic strength), desorption conditions (i.e. desorption solvent type and volume, and desorption time) on the pesticides extraction efficiencies were inquired using matrixed match method. Applying the optimum conditions, the linearity of 0.100–500.000 µg kg−1, LODs and LOQs in the range of 0.03–0.04 µg kg−1 and 0.1 µg kg−1 for the studied food samples were obtained. The repeatability (intra–day precision (n = 5)) of ≤ 2.0 % and reproducibility (inter–day precision, days = 5, n = 3) of ≤3.1 % and were appraise at three concentration levels (10, 50 and 100 μg kg−1 of each analyte). High relative recoveries of 90.0–99.3 % ascertained high potential of the presented method for complex matrix analysis.