ED YOUNG / SCIENCE PHOTO LIBRARY ED YOUNG / SCIENCE PHOTO LIBRARY
Chromatography. Chemist in a lab- oratory with liquid-column chromatography equip- ment. In the background two more chemists work at a fume cupboard. Liquid-column chromatography is used to separate the different components from a mixture of chemicals. During this process the mixture is put in the top of the column. The mixture passes through a porous substance which selectively hinders the movement of each of the components. This means that some components will travel further in a given time than others, allowing each of them to be individually detected and analysed. Photographed in an agricultural laboratory.
Model release available. Property release not required.