Authors: Zynger, J.¹; Crouch, S.R.²

Source: Applied Spectroscopy, Volume 29, Issue 3, Pages 221-278 (May/June 1975) , pp. 244-255(12)

Publisher: Society for Applied Spectroscopy

Abstract:

A miniature spark discharge system is described for solution analysis by emission spectroscopy. Samples are introduced as dry particles formed by nebulization into a heated desolvation chamber. The spark is formed by the discharge of a coaxial capacitor through a stream of argon which transports the desolvated aerosol. A photoelectric, time-resolved detection system for mechanistic studies and analytical applications is described. The detection system consists of a synchronous integrator controlled by a digital timing and sequencing system. The time-resolved spectral characteristics of the source are discussed, and time resolution is shown to provide enhanced sensitivity. Analytical results are reported for a variety of elements.

Keywords: Emission spectroscopy; Instrumentation-emission spectroscopy; Time-resolved spectroscopy

Document Type: Research article

DOI: http://dx.doi.org/10.1366/000370275774456030

Affiliations: 1: Department of Chemistry, Michigan State University, East Lansing, Michigan 48824; present address: Eli Lilly and Company, P.O. Box 618, Indianapolis, Ind. 46206 2: Department of Chemistry, Michigan State University, East Lansing, Michigan 48824

Publication date: 1975-05-01

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