Cloud Point Extraction of Copper, Zinc, Iron and Nickel in Biological and Environmental Samples by Flame Atomic Absorption Spectrometry

Ghaedi M., Shokrollahi A., Niknam K., SOYLAK M.

SEPARATION SCIENCE AND TECHNOLOGY, cilt.44, sa.3, ss.773-786, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 44 Sayı: 3
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1080/01496390802437164
  • Dergi Adı: SEPARATION SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.773-786
  • Anahtar Kelimeler: 2-phenyl-1H-benzo[d]imidazole, cloud point extraction, preconcentration, triton X-114, SOLID-PHASE EXTRACTION, SENSITIZED SPECTROPHOTOMETRIC DETERMINATION, MICELLE-MEDIATED METHODOLOGY, WATER SAMPLES, TRACE AMOUNTS, PRECONCENTRATION, SEPARATION, CHROMIUM, LEAD, NI
  • Erciyes Üniversitesi Adresli: Evet

Özet

Cloud point methodology was successfully employed for preconcentration of trace copper, zinc, iron, and nickel prior to their determination by flame atomic absorption spectrometry (FAAS). The metals react with 2-phenyl-1H-benzo[d] imidazole (PHBI) in a surfactant Triton X-114 medium. The effects of analytical parameters including pH, amounts of reagents etc. were investigated on the recoveries of analytes. No influences were observed from the matrix ions. The detection limits (3SDb/m) of 1.8, 2.8, 1.4, and 2.1ng mL-1 for Cu2+, Fe3+, Zn2+, and Ni2+, respectively. The method was applied to metal determination in various real samples. The validation of the procedure was carried out by analysis of a certified reference biological material, BCR 185 R liver samples.