determination of heavy metals in soil by atomic absorption spectrometry(aas)name: xufei group: the 3rd groupdate: sep. 20th 2012part 1 the introduction1. 1the purposes(1)learn how to operate the atomic absorption spectrometry;(2)learn how to do the pretreatment of soil samples;(3)get familiar with the application of atomic absorption spectrometry.1. 2the principlesatomic absorption spectrometry (aas) is a technique for measuring quantities of chemical elements present in
