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Gravimetric microanalysis of beryllium silicate rocks

The separation and quantitative determination of silicic acid, phosphoric acid, aluminium, iron, beryllium, magnesium and calcium in a single small sample and the microanalysis of the mineral “Kolbeckit”

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Mikrochemie

Summary

A complete procedure for a complicated quantitative micro analysis in which a single sample of a few milligrams weight was used, has been carried out for the first time. With the exception of the iron, all determinations, viz. silicic acid, phosphoric acid, aluminium, beryllium, magnesium and calcium, were gravimetric. The technic employed was that developed byEmich and his school. The results obtained are well within the standards of precision set for macro determinations byHillebrand. Every determination and separation was tested previously separately and in combination with the preceding steps. It is to be further emphasized that the procedure is described in detail so as to permit reproduction by other workers even though it was necessary at times for the sake of brevity to refer back to previous papers of this series.

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Literatur

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Authors and Affiliations

  1. Contribution from the Chemical Laboratory of the Washington Square College, New York University, New York, N. Y.

    Hilde Thurnwald & A. A. Benedetti-Pichler

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  1. Hilde Thurnwald
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  2. A. A. Benedetti-Pichler
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Thurnwald, H., Benedetti-Pichler, A.A. Gravimetric microanalysis of beryllium silicate rocks. Mikrochemie 11, 200–220 (1932). https://doi.org/10.1007/BF02715289

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