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Electrostatic Precipitation Atomic Absorption Spectrometry

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Abstract:

The theory and principles, design, construction, and preliminary evaluation of a system based on the electrostatic precipitation of metals in aerosols on a tungsten collecting electrode, followed by injection of this rod into an electrothermal atomizer for atomic absorption spectrometric determination of the metal, is described. With the use of a manganese aerosol generated by an electrothermal vaporizer, the highest atomic absorption signals—and therefore the optimum charging and collecting efficiency for the geometry of the system as described—were achieved with a negative corona of 15 kV and low aerosol velocity. The system determined copper in the laboratory atmosphere on a near-real-time basis.

Keywords: Aerosol; Atomic absorption spectrometry; Electrostatic precipitation; Electrothermal atomizer

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702904417931

Affiliations: Department of Chemistry, University of Lowell, Lowell, Massachusetts 01854

Publication date: November 1, 1990

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