title: Detection progress of selected drugs in TLC.
abstract: This entry describes applications of known indicators and dyes as new visualizing reagents and various visualizing systems as well as photocatalytic reactions and bioautography method for the detection of bioactive compounds including drugs and compounds isolated from herbal extracts. Broadening index, detection index, characteristics of densitometric band, modified contrast index, limit of detection, densitometric visualizing index, and linearity range of detected compounds were used for the evaluation of visualizing effects of applied visualizing reagents. It was shown that visualizing effect depends on the chemical structure of the visualizing reagent, the structure of the substance detected, and the chromatographic adsorbent applied. The usefulness of densitometry to direct detection of some drugs was also shown. Quoted papers indicate the detection progress of selected drugs investigated by thin-layer chromatography (TLC).
authors.affiliation: Department of Analytical Chemistry, Faculty of Pharmacy, Medical University of Silesia, 4 Jagiellońska Street, 41-200 Sosnowiec, Poland.
authors.forename: Alina
authors.initials: A
authors.lastname: Pyka
mesh_terms: D002855:Chromatography, Thin Layer; D004396:Coloring Agents / Q000737:chemistry*; D007202:Indicators and Reagents / Q000737:chemistry*; D004364:Pharmaceutical Preparations / Q000032:analysis*; D010936:Plant Extracts / Q000032:analysis
chemical_list: D004396:Coloring Agents; D007202:Indicators and Reagents; D004364:Pharmaceutical Preparations; D010936:Plant Extracts