Paper chromatography
Numéro d’image : 11519966
| Paper chromatography,separating coloured inks (vertical streaks). Chromatography is an analytical process that separates a compound into its constituent chemicals. Chromatography paper with the ink on it is dipped vertically in a solvent. Capillary action draws the solvent up through the paper,dissolving the ink. As the solvent travels up the paper it takes the various chemicals in the ink with it,separating them into a series of coloured bands. For example black coloured ink (far left) is composed of red,purple,blue and brown inks | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Andrew Lambert Photography |
| Taille de l’image : | 4940 px × 3644 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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