Dragon' blood is widely used as a famous traditional Chinese medicine which has been found antimicrobial, antiviral, antitumor, antihemorrhagic, immunomodul
Notwithstanding the continuous progress in instruments playability and impressive potential of modem LC-MS based bio-analytical methodologies, sample prepar
B(a)P as one kind of durable organic pollutant is widely exists in complex organic matrix, for example: B(a)P in cigarette smoke condensate (ng).It has low
Chinese herbal medicine is an important component of Medicine in China..At domestic and abroad,the main metchod of extracting the ingredients of Chinese her