Residual solvents in pharmaceutical samples are monitored using gas chromatography with head space. Based on good manufacturing practices, measuring residual solvents is mandatory for the release testing of all active pharmaceutical ingredients (API). The analysis of residual organic solvents (methanol, ethanol, acetone and toluene) in Omeprazole API was investigated.The Head space gas chromatography (HSGC) method described in this investigation utilized a DB - 624, 30 m long x 0.32 mm internal diameter, 1.8 m thick column. Since Omeprazole is a thermally labile compound, the selection of the...

With the emerging worldwide interests in adopting and studying traditional systems and exploiting their potential based on different health care systems, the evaluation of the rich heritage of traditional medicine is essential. From the innumerable plants being researched since time immemorial, Costus speciosus is an important one. The present book was aimed at pharmacognostical, preliminary phytochemical and pharmacological evaluations of the aerial parts of Costus speciosus Koen.

The herbals have occupied a distinct place in the life right from the primitive period till date and in recent time there has been a marked shift towards herbal cures because of pronounced cumulative and irreversible reactions of modern drugs. Utilization of plants for medicinal purposes in India has been documented long back in ancient literature because they are essential to human survival. The present book was aimed at phytochemical and pharmacological evaluation of the aerial parts of Alpinia galanga 'Rasna'.