High-Performance Thin-Layer Chromatography Method Development for Estimation of Triterpenoids in Calotropis Gigantea Roots

Quantitative Estimation of Efavirenz by High Performance Thin Layer Chromatography

A simple, accurate, and precise HPTLC method has been developed and validated for the estimation of efavirenz from bulk drug and capsule formulations. The separation was achieved on TLC plates using an appropriate solvent system. The spots so developed were densometrically scanned at 247 nm. The linearity of the method was found to be within the concentration range of 1-40 μg/ml. The validation...

a high-performance thin-layer chromatography method for quantitative determination of quercetin in herbal products

A preparative high performance liquid chromatography method for separation of lecithin: comparison to thin-layer chromatography.

We have developed a high performance liquid chromatography (HPLC) method to separate lecithin from other phospholipid classes and to obtain lecithin from biologic materials. The separation was performed on a preparative 10-micron Spherisorb column with an optimized solvent system consisting of the following components: acetonitrile, isopropanol, methanol, water, and trifluoroacetic acid. The ad...

Validated High Performance Thin Layer Chromatography Method for Simultaneous Estimation of Ofloxacin and Ornidazole in Tablet Dosage Form

.co m) . was displayed by Terminalia chebula seed extract against B. cereus. In fact, this plant extract (both aqueous and ethanolic) could inhibit all the bacterial strains investigated. Out of 50 aqueous extracts, 16 extracts showed activity against any one of grampositive bacteria, while only 10 extracts showed activity against any one of gram-negative bacteria. The plant extracts inhibited ...

A validated high-performance thin layer chromatography method for estimation of lornoxicam and paracetamol in their combined tablet dosage form

INTRODUCTION Lornoxicam (LORN) a nonsteroidal antiinflammatory drug of oxicam class is marketed in combination with Paracetamol, a common analgesic for acute inflammatory disease of joints. MATERIALS AND METHODS LORN and Paracetamol (PCM) were estimated at 280 nm by densitometry using silica gel 60 F254 as stationary phase and a premix of toluene: chloroform: methanol: formic acid (3:5:1.5:0....