The importance of the rollover absorbance and the Zeeman sensitivity ratio related coefficient for the accuracy in linearization of calibration curves in electrothermal atomic absorption spectrometry with Zeeman effect background correction

Abstract

An improvement in the calculation of the Zeeman effect sensitivity ratio related coefficient R is presented. The importance of accuracy when determining the two factors R and the rollover absorbance A r is discussed. Of these two factors it appears that an accurate value of R is more important for the efficacy of linearization. For Ag, Al, Be, Cd and Pb linearized calibration curves has been constructed where the deviation of sensitivity along the calibration curve showed, for some elements, signs of systematic errors. This article is an electronic publication in Spectrochimica Acta Electronica (SAE), the electronic section of Spectrochimica Acta Part B (SAB). The hard copy text is accompanied by two disks with executable programs, source code files and data files suitable for use on IBM compatible PCs. The manual text file (manual.txt) includes a detailed description of how to use the supplied programs and information concerning source code files and data files.