Thin layer chromatogram (TLC) of an extract of thylakoid membranes from the leaf of annual meadow grass Poa annua. TLC plastic sheets are coated with a 60 F254 silica gel which measures 0.2 millimetres thick. Three drops of extract,corresponding to the three columns here,were laid at the bottom of the sheet. The sheet was then placed in a beaker of solvent (75% acetone & 25% petroleum ether). The picture shows the solubility of the extract in solvent. Seven bands are seen; top (orange) is carotene; 2 (green) pheophytin; 3 (green) chlorophyll A; 4 (green) chlorophyll B; 5,6 & 7 are carotenoids. The line crossing the top of image is the solvent line | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Stammers, Sinclair |
Bildgröße: | 3433 px × 4896 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |