This standard was last reviewed and confirmed in 2020. Therefore this version remains current.
Abstract Preview
Describes the preparation of the calibration graph and the dissolution of a test portion in concentrated sulphuric acid and heating on a hot-plate until the hydrofluoric acid has evaporated. Treatment of the residue with concentrated hydrochloric acid. Aspiration of the solution into an acetylene/dinitrogen monoxide flame and spectrophotometric measurement of the absorption of the 422.7-nm line emitted by a calcium hollow cathode lamp.
General information
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Status : PublishedPublication date : 1976-09
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Edition : 1Number of pages : 4
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- ICS :
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Salts
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