Objective: The objective of the present study is to establish a simple, sensitive, and specific RP-HPLC technique determine atorvastatin calcium (ATV) atenolol (ATL) in rabbit plasma.
 Methods: Both drugs like have been extracted by simple liquid-liquid extraction with acetonitrile.
 Results: chromatographic separation has performed on reversed-phase C18 column mobile phase phosphate ...

The condensation of benzylamine with glyoxal leads to Hexabenzylhexaazaisowurtzitane (HBIW) in acetonitrile solvent with citric acid as a green catalyst under both conventional stirring and ultrasonic irradiation conditions. The influence of four variables, including the amount of catalyst, solvent, reaction time and ultrasonic power, on the reaction yield was investigated. The results showed t...