Determination Of The Levels Of Trace Metals In Ethiopian Landrace Lentils (lens Culinaris Medik)

The concentrations of trace essential metals (Co, Cu, Fe, Mn, Ni, and Zn) and toxicrnheavy metals (Cd, Pb) in the Ethiopian landrace lentil samples were determined byrnusing flame atomic absorption spectrometry. A wet digestion procedure, usingrnmixtures of HNO3, HClO4 and H2O2, was developed for the decomposition ofrnpowdered lentil samples. The accuracy of the method was checked by the standardrnaddition method. The contents of the analyzed heavy metals ranged between 0.009rnand 0.013 for Cd, 0.285 and 0.360 for Co, 0.226 and 0.282 for Cu, 9.17 and 11.91 forrnFe, 6.7 and 8.2 for Mn, 0.120 and 0.244 for Ni, 0.142 and 0.176 for lead and 8.62 andrn10.03 for Zn, all in mg/100 g. The results were compared with values reported in thernliterature.rnKeywords: lentil, atomic absorption spectrometry, wet digestion, mineral nutrition,rntoxic metals, legumes.

Get Full Work

Report copyright infringement or plagiarism