A validated online over-pressured layer chromatography (OPLC) method was developed for the rapid, cost-effective, and efficient separation of gallic acid. A reversed-phase (RP) ultraviolet (UV)–online OPLC analytical method was developed and validated as per the International Conference on Harmonization (ICH) guidelines. Methanolic extract of Annona muricata (fruit) was prepared by cold maceration. Separation of marker was achieved on RP-OPLC plates (5 × 20 cm) with isocratic solvent system of 0.1% acetic acid, water and methanol (30:70) at a flow rate of 0.15 mL min−1; detection was carried out at λmax 270 nm. The base peak of standard gallic acid was at 5.441 min with good linearity (r2 > 0.999), precision, and accuracy. The limit of detection (LOD) (521.84 mg mL−1) and limit of quantification (LOQ) (1581.336 mg mL−1) values reflect that the method is sensitive with high peak purity; the recoveries of analyte were 99 to 103%. The achievement of the method was the early retention time of gallic acid which in turn increased the efficiency of the quantification of the targeted marker in a short duration of time for even larger number of samples in plant extract as well as biological fluids for pharmacokinetic studies. The application of the method can be extended in regulatory guidelines for the quality control of herbal drugs/products and formulations. The method is rapid and economical in terms of solvent consumption and, hence, can be preferred over other high-performance thin-layer chromatographic or liquid chromatographic methods.
M.Karamac, A.Kosinska, R.B.Pegg, Polish J. Food Nutri. Sci.15 (2006) 55–58.
P.Oroszlan, G.Verzar-Petri, E.Mincsovics, T.Székely, A.Vastagh, Proc. Intern. Symposium on TLC with Special Emphasis on OPLC (Szeged, 1984), Labor MIM, Budapest (E. Tyihák ed.), 1986, pp. 343–352.
P.Oroszlan, G.Verzar-Petri, E.Mincsovics, T.Székely, A.Vastagh, Proc. Intern. Symposium on TLC with Special Emphasis on OPLC (Szeged, 1984), Labor MIM, Budapest (E. Tyihák ed.), 1986, pp. 343–352.)| false