No abstract

The coupling of an electrothermal vaporlzer to an inductively coupled plasma spectrometer has been shown to result In a powerful technique. I n this communlcatlon we dlscuss the lmplementatlon of an electrothermal vaporlzer, a polychromator, and a data coilectlon routine that allows slmultaneous multlelement analysis. The trade-offs and conslderatlons necessary to recover the Information produced by the system In an optlmal fashlon are dlscussed. The method of data

No abstract

This paper compares the performance characteristics of three routinely used methods for the determination of trace metal content in geochemical samples þ Atomic Absorption Spectrometry (AAS), Inductively Coupled Plasma Emission Spectroscopy (ICP-ES), and Direct Current Plasma Emission Spectroscopy (DCP-ES). All three techniques have been shown to be capable of producing virtually any solution elemental analysis at acceptable levels of precision and accuracy. But `real world' sample analyses, as with geochemical determinations, requires that other questions be answered, before determining which technique is the method of choice. Such considerations as sample preparation requirements, interference correction capabilities, speed, convenience, and cost must be considered. Examples of such considerations will be presented with specific application to trace metal determination in geochemical samples.