title: Sensitive high-performance liquid chromatographic assay method for the determination of picroside I in plasma.
abstract: Picroliv is a new hepatoprotective agent, being developed at the Central Drug Research Institute (CDRI, Lucknow, India). Picroside I is a major active constituent of picroliv. A sensitive high-performance liquid chromatographic assay method in plasma has been developed and validated for the determination of picroside I in plasma. The method consists of extraction of the drug, after protein precipitation with methanol, from rabbit plasma samples. Separation was achieved using a C18 endcapped reversed-phase column coupled with a photodiode array detector and acetonitrile-0.1 M acetic acid (25:75) as mobile phase. The lower limit of quantification in plasma is 50 ng/ml. The standard curve was linear over the range of 50-500 ng/ml in rabbit plasma. The analytical recovery of picroside I added to plasma was >80%. The reproducibility was determined by the inter- and intra-assay precision which were <15%.
authors.affiliation: Pharmaceutics Division, Central Drug Research Institute, Lucknow, India.
authors.forename: A K
authors.initials: AK
authors.lastname: Dwivedi
authors.forename: D
authors.initials: D
authors.lastname: Kulkarni
authors.forename: S
authors.initials: S
authors.lastname: Singh
mesh_terms: D000818:Animals; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D002934:Cinnamates / Q000097:blood*; D005960:Glucosides / Q000097:blood*; D057888:Iridoid Glucosides; D011817:Rabbits; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013056:Spectrophotometry, Ultraviolet
chemical_list: D002934:Cinnamates; D005960:Glucosides; D057888:Iridoid Glucosides; C109270:picroside I