A new separation and preconcentration method for selenium in some foods using modified silica gel with 2,6-diamino-4-phenil-1,3,5-triazine

Mendil D., Demirci Z., Uluozlu O. D., Tuzen M., SOYLAK M.

FOOD CHEMISTRY, cilt.221, ss.1394-1399, 2017 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 221
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.foodchem.2016.11.014
  • Dergi Adı: FOOD CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1394-1399
  • Anahtar Kelimeler: Selenium, Solid phase extraction, Modified silica gel, Graphite furnace atomic absorption spectrometry, ATOMIC-ABSORPTION-SPECTROMETRY, HYDRIDE GENERATION, ANTIOXIDANT ACTIVITY, METAL-IONS, SAMPLES, EXTRACTION, CHROMATOGRAPHY
  • Erciyes Üniversitesi Adresli: Evet

Özet

A novel and simple solid phase extraction method was improved and recommended for selenium. Silica gel was modified with 2,6-diamino-4-phenil-1,3,5-triazine and characterized by FTIR, SEM and elemental analysis and used adsorbent for column solid phase extraction of selenium ions. The experimental parameters (pH, flow rates, amounts of the modified silica gel, concentration and type of eluent, volume of sample, etc.) on the recoveries of selenium were optimized. Standard reference materials were analyzed for validation of method. The present method was successfully applied to the detection of total selenium in water and microwave digested some food samples with quantitative recoveries (>95%). The relative standard deviations were < 8%. Matrix influences were not observed. The adsorption capacity of modified silica gel was 5.90 mg g (1). The LOD was 0.015 mu g L (1). Enrichment factor was obtained as 50 for the introduced method. (C) 2016 Elsevier Ltd. All rights reserved.