Abstract:
The lentil seeds (Lens Culinaris Medik) of samples were collected from the farm land of
Angowelela and tera district Chacha and Chefanen kebele. After the pre-treatment, of the
digestion and ignition temperature and volume of reagents used the concentration of selected
metals was determined by inductively coupled plasma optical emission spectrometry. The
concentration of essential metals nutrients in the lentil seed samples were in the following
ranges Zn(4.5739-4.439mg/kg), Cu(0.6137-0.662mg/kg), Fe(4.8313-2.622mg/kg), Cr(0.2882-
0.295mg/kg) the concentration of toxic, heavy metals were Cd(0.1515-0.1367mg/kg),
Hg(0.5945-0.7493mg/kg) and Pb(1.1348-1.009mg/kg). All the metal determined were found
below the levels allowed for legumes crop by WHO/FAO except mercury and cadmium metal.
T-test at 95% confidence interval indicated that there is positive and highly significant
correlation (r = 0.99*
), between heavy metal lead with cadmium and iron with copper
respectively for Chacha. Similarily positive significant correlation(r=0.99*
) between heavy
metal copper with zinc for Chefanen. However, the degree to which two securities are
negatively or positively correlated might vary over time and are almost never exactly
correlated, all the time. This condition may happen sometimes because one physico-chemical
property may affect others and it may don’t have consistent.
