RP-HPLC of analogues of oxytocin containing a reduced peptide bond was studied using various columns and buffers. Anomalous behavior of one analogue served as a basis for the discussion of possible conformational consequences of this substitution.

A comparison of two RP-high-performance liquid chromatography (HPLC) methods to determine efficient sample extraction to determine efficient method for getting optimum retention time and recovery of verapamil from rat plasma.

This study aims to determine the caffeine and detection of some other drugs (which has commonly spread caused suicides in recent years El-Bieda city - Libya) cappuccino, nescafe, cacao coffee samples using Reversed Phase High Performance Liquid Chromatography (RP-HPLC). In presented study, seventeen were collected from Libyan markets. A rapid, simple reliable extraction method is developed vali...