This standard was last reviewed and confirmed in 2020.
Therefore this version remains current.
Abstract
PreviewDescribes 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.
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Status: PublishedPublication date: 1976-09
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Edition: 1Number of pages: 4
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- ICS :
- 71.060.50 Salts
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en
| Format | Language | |
|---|---|---|
| std 1 40 | ||
| std 2 40 | Paper |
- CHF40
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