Determination of Pb, Ag, Cu and Mn in Steel by Electrothermal-Atomic Absorption Spectrometry with Direct Atomization of a Solid sample

摘要

When a small amount of metallic sample such as steel was heated in a graphite furnace used on electrothermal-atomic absorption Spectrometry (ET-AAS), trace Pb, Ag, Cu and Mn in the sample were evaporated out of it, atomized and determined by AAS. A small sample was used for one determination. Mass of the sample was form about 20 to 600 μg. A graphite furnace was continuously used to atomize an analytical sample one by one.