Abstract

Resonance detection and quantification of atomic absorption have been demonstrated for Na, Cu, and Li using an optogalvanic effect. In this experiment, a pulsed dye laser tuned to an absorption transition of the analyte atom (i.e., the element to be determined) was directed through the analyte atomic vapor produced in a flame into a commercial hollow cathode lamp containing the element of interest. The optogalvanic signal was monitored and related to the analyte concentration in the flame. Detection limits were obtained for Na, Cu, and Li, the behavior of the sodium hollow cathode lamp was characterized, and future applications are suggested.

© 1981 Optical Society of America

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