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Approaching Single Atom Detection with Atomic Fluorescence in a Glow Discharge Atom Reservoir

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Abstract:

A commercial hollow cathode lamp is used as an atom reservoir for the atomic fluorescence of lead excited by a copper laser pumped dye laser. The glow discharge source is nearly an ideal atom cell for such measurements, having very low background emission and excellent atomization characteristics. A detection limit of 1.8 ag of lead within the laser beam is easily obtained.

Keywords: Atomic fluorescence; Glow discharge; Single atom detection

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702894202148

Affiliations: 1: Department of Chemistry, University of Florida, Gainesville, Florida 32611 2: Department of Chemistry, University of Florida, Gainesville, Florida 32611; present address: CCR, Joint Research Center, Environment Institute, 21020, Ispra (Va), Italy

Publication date: July 1, 1989

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