Determination of Some Heavy Metals in Yemeni Green Coffee

Qais Abdullah Nogaim[1]; Sam Al-Dalali[2]; Abdu Al-Badany[3] ,Majed Farh[4]
Page No. 13-18

The present study aims to determine the occurrence of some heavy metals in 70 samples of Yemeni
green coffee (Coffea Arabica L.), which were collected by Yemen Standardization Metrology and
Quality Control Organization from many local markets in some Yemeni Governorates in
2010/2011. The analysis carried out in Ibb University Laboratories by using Atomic Absorption
Spectroscopy (AAS), and the results could be summarized as the following:
The concentrations of heavy metals in this investigation such as Cadmium (Cd), Copper (Cu), Iron
(Fe), Lead (Pb) and Zinc (Zn) as averages were 0.67, 11.29, 25.33, 2.07 and11.24 ppm,
respectively.
Keywords: Yemen coffee, chemical contamination, heavy metals