Determinazione del fluoro nelle rocce. Procedura mediante separazione per scambio ionico
Atti della Accademia nazionale dei Lincei. Rendiconti della Classe di scienze fisiche, matematiche e naturali, Série 8, Tome 42 (1967) no. 5, pp. 683-694
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Interferences in the determination of fluorine in rocks and minerals have been studied. A procedure has been worked out consisting in the following steps: 1. Decomposition by Na2CO3 and K2CO3 flux 2. insolubilisation of silica in neutral acetic medium 3. separation from both silica and any cation other than sodium, by ion exchange 4. spectrophotometric determination. The accuracy appears to be good. The precision has been verified by means of series of replicate analyses.
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