Analysis of small amounts of solid samples by spark-source mass spectrometry |
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Authors: | Morimasa Saito |
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Institution: | Materials Characterization Division, National Research Institute for Metals, 3–12, 2-chome, Nakameguro, Meguroku, Tokyo Japan |
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Abstract: | Various elements were determined in solid samples weighing < 2 mg by spark-source mass spectrometry. The samples were fixed on the top of a cylindrical graphite electrode using a conductive silver paint. After baking, the samples were sparked against a tantalum or gold wire. The method was used for the determination of impurities in steel, iron, molybdenum and CdSe. For samples weighing ca. 1 mg, detection limits of the order of 1 μg g?1 were obtained. A relationship between the relative sensitivity factor and physical properties is proposed. |
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Keywords: | Mass spectrometry Solid samples |
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