Browsing by Subject "Liquid-liquid extraction"

Now showing items 1-3 of 3

    • Optimisation of a stereoconvergent process catalysed by whole yeast cells 

      Yeates, Charl Alan (North-West University, 2008)
      Stereochemistry, defined as being the study of the spatial behaviour of atoms in molecules and complexes, has become increasingly important in the pharmaceutical sector. In particular, the existence and pharmacological ...

    • Re-assessment and optimisation of an organic acid extraction method for automation 

      Phiri, Masauso Moses (North-West University (South Africa), Potchefstroom Campus, 2017)
      Sample preparation is a necessary prerequisite for GC/MS analysis of urinary organic acids for clinical diagnosis of inborn errors of metabolism (IEM). The sample clean-up step in the analytical process poses a challenge. ...

    • The time dependent solvent extraction of Ta and Nb 

      Van der Westhuizen, Derik J.; De Beer, Leon; Ungerer, Marietjie J.; Krieg, Henning M. (Trans Tech Publications, 2014)
      The suitability of Liquid-liquid extraction (LLE) for the selective extraction of chemically similar tantalum (Ta) and niobium (Nb) mixtures was investigated by determining the influence of the acid concentration, extractant ...