title: [Determination of risperidone and 9-hydroxyrisperidone in plasma by high performance liquid chromatography].
abstract: A reversed-phase HPLC method for the determination of risperidone and 9-hydroxyrisperidone in plasma was established. Risperidone and 9-hydroxyrisperidone can be separated on a Zorbax ODS C18 column with a mobile phase of MeOH-water-ammonium acetate (mol/L)-ammonia water(3 mol/L) (300:50:3:1, volume ratios) and detected at 280 nm. The flow rate was 0.8 mL/min. The linear range was 2-600 micrograms/L, r = 0.996 for risperidone, and 2-800 micrograms/L, r = 0.998 for 9-hydroxyrisperidone. The average recovery was (98.2 +/- 3.5)% for risperidone, and (97.8 +/- 3.8)% for 9-hydorxyrisperidone. The intra-day and inter-day coefficients of variation were 4.12% and 4.83% for risperidone respectively, 4.28% and 4.81% for 9-hydroxyrisperidone respectively. The method has been used to determine risperidone and 9-hydroxyrisperidone mass concentration in patient plasma. The data obtained showed that the sensitivity and selectivity of this method were adequate for drug monitoring in clinical research.
authors.affiliation: Brain Hospital, Nanjing Medical University, Nanjing, 210029.
authors.forename: H
authors.initials: H
authors.lastname: Xiao
authors.forename: J
authors.initials: J
authors.lastname: Yang
authors.forename: S
authors.initials: S
authors.lastname: Zhang
authors.forename: X
authors.initials: X
authors.lastname: Zhang
mesh_terms: D014150:Antipsychotic Agents / Q000097:blood*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D006801:Humans; D007555:Isoxazoles / Q000097:blood*; D000068882:Paliperidone Palmitate; D011743:Pyrimidines / Q000097:blood*; D018967:Risperidone / Q000097:blood*; D012702:Serotonin Antagonists / Q000097:blood
chemical_list: D014150:Antipsychotic Agents; D007555:Isoxazoles; D011743:Pyrimidines; D012702:Serotonin Antagonists; D018967:Risperidone; D000068882:Paliperidone Palmitate