solvent front

solvent front

[′säl·vənt ‚frənt]
(analytical chemistry)
In paper chromatography, the wet moving edge of the solvent that progresses along the surface where the separation of the mixture is occurring.
References in periodicals archive ?
The plates was kept in the TLC tank till the solvent front reached the top of TLC plate.
In most cases, a sharp penetrating solvent front separating the glassy phase from the rubbery phase is observed in addition to a volume swelling front at the polymer/solvent boundary.
Finally, with respect to the chromatographic separation, the peaks of L-DOPA, 3,4-dihydroxyphenylacetic acid, and DA are not well separated from each other, from the solvent front, or from two unidentified peaks.