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Direct Introduction of Steel Samples into a Capacitively Coupled Microwave Plasma for Atomic Emission Spectrometry

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The feasibility of analyzing steel samples by direct introduction into a helium/hydrogen mixed-gas capacitively coupled microwave plasma was assessed with steel standard reference materials (NIST 442-450). Linear calibration curves were obtained for various concentration ranges. Limits of detection for Sn and Pb were 5 μg/g and 0.08 μg/g, respectively.

Keywords: Capacitively coupled microwave plasma; Direct solid sample introduction; Helium/hydrogen mixed-gas microwave plasma

Document Type: Research Article


Affiliations: 1: Department of Chemistry, University of Florida, Gainesville, Florida 32611; on study leave from University of Malawi, P.O. Box 280, Zomba, Malawi 2: Department of Chemistry, University of Florida, Gainesville, Florida 32611

Publication date: November 1, 1992

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