Chromatography is used to separate the given components of a mixture that have differing solubilities in a solvent. It can be used to separate coloured substances in a mixture, like the inks in this ...

A pencil line is drawn, and spots of ink or plant dye are placed on it. There is a container of solvent, such as water or ethanol. A pure substance will only produce one spot on the chromatogram ...

IN previous publications 1–4 from this laboratory, the use of the agar-plate method for the detection of enzymes has been described. This technique has now been adapted to the location of enzymes on ...

IN a recent publication 1 from this laboratory, a method for the separation of amino-acids by circular paper chromatography was outlined. The present communication describes a new technique, which ...