Determination of lead and cadmium in food samples by the coprecipitation method

Oymak T., TOKALIOĞLU Ş., YILMAZ V., KARTAL Ş., AYDIN D.

FOOD CHEMISTRY, cilt.113, sa.4, ss.1314-1317, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 113 Sayı: 4
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.foodchem.2008.08.064
  • Dergi Adı: FOOD CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1314-1317
  • Anahtar Kelimeler: Coprecipitation, Food samples, Lead, Cadmium, GFAAS, ATOMIC-ABSORPTION-SPECTROMETRY, ENVIRONMENTAL-SAMPLES, PRECONCENTRATION SYSTEM, TRACE-METALS, HYDROXIDE, NICKEL, WATER, DIETHYLDITHIOCARBAMATE, SEAWATER, SELENIUM
  • Sivas Cumhuriyet Üniversitesi Adresli: Hayır

Özet

In this study, the coprecipitation method developed using a combination of 2-mercaptobenzothiazole (MBT) as a chelating reagent and copper as coprecipitate carrier Was used for the determination of trace lead and cadmium in various food samples by graphite furnace atomic absorption spectrometry (GFAAS). The method was applied for the determination of Pb(II) and Cd(II) in salami, sausage, chicken. anchovy, spinach, cabbage, onion, dill, parsley, lettuce, tea and rice samples. The matrix modifiers were added as 50 mu g NH4H2PO4 + 3 mu g Mg(NO3)(2) for both Pb(II) and Cd(II). The signals were measured as peak area. The concentrations of Pb(II) and Cd(II) in the food samples were found to be in the range of 6.63 ng g(-1) (anchovy) -3.30 mu g g(-1) (spinach) and 2.67 ng g(-1) (salami) -0.51 mu g g(-1) (lettuce), respectively. (C) 2008 Elsevier Ltd. All rights reserved.