High Performance Liquid Chromatographic Determination of Sugars in Confectionery Products

HIGH-PERFORMANCE LIQUID CHROMATOGRAPHIC DETERMINATION OF THEOPHYLLINE IN HUMAN SERUM

A simple, rapid and sensitive HPLC method for the determination of theophylline (T) in human serum has been developed. An isocratic system consisting of a /-l Bondapak C18 column, mobile phase of methanol, phosphate buffer (22:78, pH=4.5), and a flow rate of 1.4 mL/min was used. The eluent was detected by UV at 275 nm at room temperature. 8-Chlorotheophylline (8-CT) was used as an internal ...

High performance liquid chromatographic analysis of sugars in raw and processed potatoes

High-Performance Liquid Chromatographic Determination of Rivastig-mine in Human Plasma for Application in Pharmacokinetic Studies

A simple and reproducible HPLC method with spectrophotometric detection was developed for determination of rivastigmine in human plasma. Liquid-liquid extraction of rivastigmine and donepezil (as internal standard) from plasma samples was performed with 1-butanol/n-hexane (2:98 v/v) in alkaline condition followed by back-extraction into diluted acetic acid. Chromatography was carried out using ...

high-performance liquid chromatographic determination of theophylline in human serum

a simple, rapid and sensitive hplc method for the determination of theophylline (t) in human serum has been developed. an isocratic system consisting of a /-l bondapak c18 column, mobile phase of methanol, phosphate buffer (22:78, ph=4.5), and a flow rate of 1.4 ml/min was used. the eluent was detected by uv at 275 nm at room temperature. 8-chlorotheophylline (8-ct) was used as an internal stan...

Comparison of Microbiological and High-Performance Liquid Chromatographic Methods for Determination of Clarithromycin Levels in Plasma

An agar well diffusion bioassay method for determination of clarithromycin in human plasma, using Micrococcus Luteus ATCC 9341 as the assay organism, was compared with a selective high-performance liquid chromatographic (HPLC) method with UV detection. Spiked plasma was used to prepare standard and control samples for both methods. The results of the bioassay analyses with spiked plasma samples...