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The long-term behavior of three popular pneumatic nebulizers was observed and compared, with particular attention given to signal-to-noise ratio. Results indicate that sample changeover time and, consequently, spray-chamber clearing time, should be as short as possible. Precision varied
widely for each nebulizer depending on the interval between data values. Integration times as short as 0.1 s can yield relative standard deviations of about 1%. Each of the nebulizers was capable of delivering better than 1% RSD, and two provided RSDs less than 0.4% under certain conditions.
The implications of these measurements on instrument and experiment design are discussed.
Department of Chemistry, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 2K6, Canada
Publication date: November 1, 1985
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The Society publishes the internationally recognized, peer reviewed journal, Applied Spectroscopy, which is available both in print and online. Subscriptions are included with membership or can be purchased by institutional or corporate organizations. Abstracts may be viewed free of charge. Previously published as Bulletin (Society for Applied Spectroscopy)