The Accurence of Pesticides Residues after the Wheat Expanding Process

Analysis was taken in a lot of pearl barley wheat suspected presence of substances that when expanding cause skin irritation to workers who executed the operation. The objective of this work consisted in the analysis of gas chromatography coupled with mass spectrometry (GS-MS) of wheat samples used in obtaining expanded products,compared with samples of wheat resulting foam, in order, highlighting the residue of chemical contaminants. Since no information about a possible presence of contaminants, was identified from the two drop chromatograms using mass spectra and their comparison with mass spectra library of mass spectra of NIST existence. Further analysis was done on a comparative trickle chromatograms through duplication occurring at the same time retention highlighting to any concentration or dilution of the compounds identified in the two matrices respectively: wheat and expanded wheat.