Blar i NGU Open Archive på emneord "SPEKTROFOTOMETRI"

Viser treff 1-4 av 4

    • A turbidimetric method for the determination of small amounts of sulphur in limestone and dolomite. 

      Graff, Per Reidar (NGU (270), Journal article, 1971)
      It has been observed thaat on applying the combustion method to the determination of small amounts of sulphur in limestone and dolomite the bulk of sulphur may remain in the sample when no oxygen stream is used, and that ...

    • Change in chemical composition of rock samples during preparation for analysis. 

      Graff, Per Reidar (NGU (300), Journal article, 1973)
      It has been shown that up to 3% of the volume of rock samples may escape as clust during their preparation (crushing and grinding) for chemical analysis. The mineral and chemical composition of the escaping rock dust may ...

    • Edel granat fra Otterøy ved Molde. 

      Hysingjord, Jens (NGU (255), Journal article, 1968)
      A gemgarnet from Otterøy by Molde, Western Norway, is described. The garnet display an \"alexandrite-like effect\", i.e. the colour varies with the nature of the incident light. The transmission curves shows absorbtion ...

    • Utprøving av metode for vannanalyse med AA-grafittovnteknikk. 

      Flårønning, Asbjørn (NGU-Rapport (90.048), Report, 1990)
      Rapporten omhandler utprøving av metode for vann- analyser på elementene bly, kadmium, kobber, krom, sink og nikkel ved hjelp av vår apparatur for atom- absrobsjon-spektrofotometri, grafittovnteknikk: Perkin-Elmer modell ...