Dynamic Range Enhancement for Flameless Zeeman Atomic Absorption Spectroscopy

Abstract

A method of extending the dynamic range in flameless ZAAS (Zeeman atomic absorption spectroscopy) was proposed. The calibration curve in this method was made as follows: Slice the absorbance-time profile at a height Aw_t, which is higher than (1/20)A₀ and lower than (1/2)Ap₀, where A₀ is the peak height and W_t is the width resulted from this slicing procedure. The slicing was done so as to give a constant W_t for all the aliquot of the solutions. It was shown that the dynamic range can be extended more than 10 times compared to the usual peak height method.