SOLID SAMPLING ELECTROTHERMAL VAPORIZATION FOR SAMPLE INTRODUCTION ININDUCTIVELY-COUPLED PLASMA-ATOMIC EMISSION-SPECTROMETRY AND INDUCTIVELY-COUPLED PLASMA-MASS SPECTROMETRY

Solid sampling using electrothermal vaporization is an attractive samp le introduction method for atomic absorption spectrometry (AAS), induc tively coupled plasma atomic emission spectrometry (ICP-AES) and induc tively coupled plasma mass spectrometry (ICP-MS). For AAS, the method is well; established. The techniques needed to apply SS-ETV in ICP-bas ed methods are described, with the emphasis on the coupling of differe nt types of ETV-devices to the inductively coupled plasma torch and on the requirements for the spectrometer and the data acquisition and ha ndling system. Though standardization is not straightforward, it is sh own that standard addition and external calibration with solid standar ds yield accurate results. The latter is demonstrated by the analysis of standard reference materials. Figures of merit for SS-ETV-ICP-AES a nd SS-ETV-ICP-MS are presented. The literature concerning ICP-AES and ICP-MS (methods and applications) is briefly reviewed and new results of SS-ETV-ICP-MS analysis of SRMs are presented.