Boletus edulis loaded with gamma-Fe2O3 nanoparticles as a magnetic sorbent for preconcentration of Co(II) and Sn(II) prior to their determination by ICP-OES

Ozdemir S., Yalcin M. S., Kilinc E., SOYLAK M.

MICROCHIMICA ACTA, cilt.185, sa.1, 2018 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 185 Sayı: 1
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1007/s00604-017-2605-5
  • Dergi Adı: MICROCHIMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Biosorbent, Magnetic solid phase extraction, Toxic metals, Trace analysis, SOLID-PHASE EXTRACTION, HEAVY-METAL IONS, TRACE-ELEMENTS, FUNGAL BIOMASS, WATER SAMPLES, FOOD SAMPLES, LEAD(II), BIOSORPTION, BIOSORBENT, PB
  • Erciyes Üniversitesi Adresli: Evet

Özet

The authors show that the fungus Boletus edulis loaded with gamma-Fe2O3 nanoparticles is a viable sorbent for magnetic solid phase extraction of trace levels of Co(II) and Sn(II). The surface structure of immobilized magnetized B. edulis was characterized by FT-IR, SEM and EDX. Experimental parameters were optimized. Following elution with 1 M HCl, the ions were quantified by ICP-OES. The limits of detection are 21 pg.mL(-1) for Co(II), and 19 pg.mL(-1) for Sn(II). The preconcentration factors are 100 for both ions. The sorption capacities of the sorbent are 35.8 mg.g(-1) for Co(II) and 29.6 mg.g(-1) for Sn(II). The method was applied to the analysis of certificated reference materials and gave >= 95% recoveries with low RSDs. It was also successfully applied to the quantification of Co(II) and Sn(II) in spiked environmental and food samples.