Retention Characteristics of a Separative Column Atomizer for Atomic Absorption Spectrometry

Abstract

The basic characteristics of a separative column atomizer (SCA) were studied in conjunction with the retention of atomic vapors of Hg, Cd and Pb. The column atomizer consists of an alumina tube heated at 800-1400°C, which is packed with graphite granules coated with Au or Pt, or mixed with Sn powder. Different retention characteristics and peak broadening were observed for different packings. The retention of atomic vapor through the SCA might be useful for the separation of coexisting elements and the removal of their interference.