RESEARCH TO DETERMINE THE AMOUNT OF TOXIC ELEMENTS IN GANODERMA FROM NORTH CENTRAL REGION OF VIETNAM BY ATOMIC ABSORPTION SPECTROSCOPY (AAS)

Abstract

    Measured parameters and conditions to determine the content of toxic elements wereresearched. Arsenic was analyzed by HG-AAS, whereas cadmium and lead were analyzed byGF-AAS, mercury was analyzed by CV-AAS. The amount of toxic elements in ganoderma hasbeen determined by AAS using the calibration curve. Analyzing the results of representativesamples were compared with the results measured by ICP-MS with arsenic and mercury, byASV with cadmium and lead. Difference between the results is less than 15% is acceptable,except for the results of cadmium in MN 1050 sample.