Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"Preparative layer chromatography"”.
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Antimicrobial activities and diversity of sponge derived microbes
… three different antimicrobial assays. Employing preparative layer chromatography the compound responsible for the bioactivity could be isolated. According to LC-MS andNMR data the bioactive compound could indeed be novel. Finally, two deep water sponges were shown to host a remarkably different …
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A chemical investigation of some New Zealand honeys
… before being separated and identified by gas chromatography and mass spectrometry. When a component could not be identified in this way, bulk extraction of representative unifloral honey samples was carried out and the extractives separated by preparative layer chromatography. The structures …
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Antimycobacterial activity of the red algae gelidium pristoides, plocamium corallorhiza and polysiphonia virgata
… extracted extensively and fractionated using preparative layer chromatography and preparative centrifugally accelerated radial thin-layer chromatography (Chromatotron). The crude extracts of the algae showed no inhibitory activity to growth of the causative agent of human tuberculosis, …
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The Isolation and Electrochemical Studies of Flavanoids from Galenia africana and Elytropapus rhinocerotis from the North Western Cape
In this study two medicinal plant species, namely Galenia africana and Elytropapus rhinocerotis, the former belonging to the family Aizoceae and the latter belonging to the family Asteraceae, have been investigated and different compounds isolated and characterized. Both species are important …