Accession Number : ADA112883

Title :   Microdroplet Sample Application in Electrothermal Atomization for Atomic Absorption Spectrometry.

Descriptive Note : Interim technical rept.,

Corporate Author : INDIANA UNIV AT BLOOMINGTON DEPT OF CHEMISTRY

Personal Author(s) : Shabushnig,J G ; Hieftje,G M

PDF Url : ADA112883

Report Date : 29 Mar 1982

Pagination or Media Count : 33

Abstract : The application of liquid samples in the form of microdroplets, approximately 150 microns in diameter, to an electrothermal atomizer has been evaluated. This technique has been found to offer improved precision (1-2% RSD), microsampling capabilities, and simplified calibration using a single concentration standard. Examination of dried sample after deposition indicates reduced spreading and crystal size for microdroplet and aerosol deposition compared with manual micropipetting methods. Crystal size and deposit spreading were found to correlate with the degree of suppression of Pb signals by Cl(-) and of Au signals by sulfate. (Author)

Descriptors :   *Atomic spectroscopy, *Absorption spectra, *Aerosols, *Microstructure, *Drops, Sampling, Deposition, Atomization, Thermoelectricity, Graphite, Crystals, Calibration, Simplification, Sulfates, Crystals, Standards, Liquids, Furnaces

Subject Categories : Military Operations, Strategy and Tactics
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE