Journal of Environmental Analytical Chemistry

Deeue Bekee

Publications

• Research Article
  Leaching of Potentially Toxic Metals (PTMs) from Two Nigerian Clays and Related Clay Pottery Used Locally as Foodwares
  Author(s): Ndokiari Boisa and Deeue BekeeNdokiari Boisa and Deeue Bekee
  
  There is presently lack of data on composition of potentially toxic metals and their leaching from clay based foodwares into food. Therefore, in present study we evaluated the leaching of cadmium, chromium, copper, manganese, nickel, lead and zinc from raw clays and traditional clay pots from two locations, Ara-Ekiti, Ekiti State and Kono-Boue, Rivers State in Nigeria. Samples were digested with aqua regia and analysed using atomic absorption spectrometry and also with energy dispersive X-ray fluorescence. Tap water set at different temperatures (27°C and 100°C) and pH values (4.2 and 9.2) were used to leach the pots. The pH of the raw clays ranges from 2.08-6.50. The order of concentrations is Fe>Mn>Pb>Zn>Ni>Cr>Cu>Cd for both clays and this was consistent with the XRF data. The results from this study indicate that Cd, Cr, Cu and Pb were not in leachable .. Read More»
  DOI: 10.4172/2380-2391.1000222

  Abstract PDF