The identification of drugs by the combination of two-dimensional HPTLC and remission spectrometry is described. The discriminating power and information content of this combination are calculated and compared with the corresponding values of GC/MS. Advantages and disadvantages of HPTLC and applications to some drugs are mentioned.

The subject of durability of drugs is a very important problem investigated by researches. The method of accelerated aging is very often used for stability testing. It involves the influence of temperature, humidity, and light exposure. The aim of this work is estimation of contents of diphenhydramine in its standard solutions undergoing the impact of external factors, that is, temperature and ...

A sensitive and accurate high-performance thin layer chromatography (HPTLC) method has been developed to determine the quantity of 6-gingerol in the methanolic extract of Zingiber officinale containing dietary supplements, teas and commercial creams. 6-gingerol was separated on aluminumbacked silica gel 60 F254 plates with n-hexane:ethyl acetate 40:60 (%, v/v) as mobile phase. A compact band wa...

Simple and accurate liquid chromatographic (HPLC) and thin layer chromatographic (HPTLCdensitometry) methods for simultaneous determination of camylofin dihydrochloride (CAM) and diclofenac potassium (DIC) in tablets were elaborated. The first method was based on isocratic reversed phase liquid chromatography by using RP ODS-C18 column with a mobile phase consisting of acetonitrile:25mM potassi...

CONTEXT Garcinia cowa is a medicinal plant widely grown in Southeast Asia and tropical countries. Various parts of this plant have been used in traditional folk medicine. The bark, latex, and root have been used as an antipyretic agent, while fruit and leaves have been used as an expectorant, for indigestion and improvement of blood circulation. AIMS This study aims to determine the concentra...

Vitex agnus-castus L. is a medicinal plant which is used in several dosage forms for women hormonal disorders and standardized according to the iridoids or flavonoids content. Aucubin, an iridoid glycoside, considered as a marker in some formulations. In this research, a thin layer chromatographic method with densitometric detection has been developed for quantitative determination of aucubin i...

Vitex agnus-castus L. is a medicinal plant which is used in several dosage forms for women hormonal disorders and standardized according to the iridoids or flavonoids content. Aucubin, an iridoid glycoside, considered as a marker in some formulations. In this research, a thin layer chromatographic method with densitometric detection has been developed for quantitative determination of aucubin i...

Purpose To evaluate corneal transparency following accelerated collagen cross-linking (ACXL) in pediatric keratoconus. Design A prospective interventional case series. Methods This study included 47 eyes (25 patients), aged 9-14 years, with documented progressive keratoconus. After applying 0.1% riboflavin drops, ACXL was performed. Assessment included corrected distance visual acuity (CDVA...

PURPOSE To assess the repeatability and validity of lens densitometry derived from the Pentacam Scheimpflug imaging system. SETTING Eye Clinic, Queensland University of Technology, Brisbane, Australia. METHODS This prospective cross-sectional study evaluated 1 eye of subjects with or without cataract. Scheimpflug measurements and slitlamp and retroillumination photographs were taken through...

BACKGROUND Prostate cancer subjects with prostate-specific antigen (PSA) relapse who are treated with androgen deprivation therapy (ADT) are recommended to have baseline and serial bone densitometry and receive bisphosphonates. The purpose of this community population study was to assess the utilization of bone densitometry and bisphosphonate therapy in men receiving ADT for non-metastatic pros...