Metals Determination in Atmospheric Particulates by Atomic Absorption Spectrometry With Slurry Sample Introduction

Abstract

An investigation has been carried out to establish a rapid method for the determination of total V, Cd, Ni, Cu, Pb, Fe, and Mn in atmospheric particulates using electrothermal atomization atomic absorption spectrometry and flame atomic absorption spectrometry with slurry sample introduction. To evaluate the accuracy of the proposed method, standard reference material Urban Particulate Matter NBS 1648 was analyzed accordingly. Results obtained and certified values did not show statistically significant differences. The precision of the method, when applied to real samples, was in the range of 1 to 3% expressed as RSD %. The results are compared with a standard dissolution procedure.