AN adverse reaction to local anesthetics has long been recognized as a calculated risk in the use of these drugs. 1 If such a reaction occurs characteristic clinical signs and symptoms signal the ...

MIXTURES in several proportions of petroleum ether (boiling point 30°–60° C), diethyl ether and acetic acid have been widely used as solvents for the separation by thin layer chromatography on silica ...

High-performance Thin Layer Chromatography (HPTLC) is one of the many sophisticated, flexible, robust, and cost-effective separation techniques employed in the discovery, development, and analysis of ...

A conditioning process is applied to guarantee consistency from plate to plate, lot to lot, and chemist to chemist. The user can prevent having to retest their sample or risk the compound decomposing ...

THE thin-layer chromatographic separation of steroids on silica-gel chromatoplates is a rapid and useful preparative and analytical technique 1–4. However, the ascending organic solvent development of ...