Levels of trace elements in different varieties of wheat determined by atomic absorption spectroscopy

Abstract EN

Trace elements, Ag, Au, Ca, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, Sr, and Zn were determined in six wheat samples purchased from the open market in different localities (Egypt, Saudi Arabia, (KSA), Yemen, Oman, Dubai, and Australia).

The dried powdered samples were decomposed in HNO3–HClO4 acids mixture and elements were determined using recording atomic absorption spectrophotometer.

The results were within the safety baseline of all the assayed elements.

Certified biological standards, Bown’s Kale (BK), Orchard Leaves (OL), and Tomato Leaves (TOML) were used to ensure the accuracy of the results.

However, Co, Pb, and Sr were absent from samples except the Egyptian samples.

The obtained databases were statistically treated.

Several significant and strong positive correlation coefficients (r = 0.506–1.00) between the groups of elements were observed.

On the other hand, strong negative correlations (r = –0.492 to –0.873) between another group of elements were also shown