radial chromatography

radial chromatography

[′rād·ē·əl ‚krō·mə′täg·rə·fē]
(analytical chemistry)
A circular disk of absorbent paper which has a strip (wick) cut from edge to center to dip into a solvent; the solvent climbs the wick, touches the sample, and resolves it into concentric rings (the chromatogram). Also known as circular chromatography; radial paper chromatography.