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 ?
TPX-0005 is a potent kinase inhibitor against wildtype and mutated ALK, ROS1 and TRK family kinases, especially the clinically significant solvent front mutations, gatekeeper mutations, and emerging compound mutations after multiple line treatments.
In the 1980s, I remember a sales rep coming to me and asking how he could break it to someone that the work that they had done using LC-UV was negated by the fact that they were measuring the solvent front rather than the compound of interest.
In ITLC, 99mTc(CO)3-ligand migrate with solvent front and free pertechnetate remained at the origin.
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.
On the solvent front a lot of misinformation has been created about toxicological risks and/or flammability factors.
Substances close to the solvent front exhibited the typical quinidine-like effect on frog hearts with decreases in both rate and force of contraction.
For analyzing pharmaceuticals, which tend to have both polar and lipophilic functionality, reducing column selectivity causes many compounds to elute near the solvent front.
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.
Solventless GC injections offer several advantages: methods are faster and less laborious, costs associated with purchasing solvents and disposing of used solvents is avoided, and peaks that may coelute in the solvent front can be quantitated with a solventless injection.