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  • Title: Simultaneous determination of catecholamines in rat brain tissue by high-performance liquid chromatography.
    Author: Chi JD, Odontiadis J, Franklin M.
    Journal: J Chromatogr B Biomed Sci Appl; 1999 Aug 20; 731(2):361-7. PubMed ID: 10510791.
    Abstract:
    A novel and highly sensitive method has been developed for the determination of catecholamines [noradrenaline (NA), dopamine (DA), serotonin (5-HT) and their metabolites 5-hydroxyindoleacetic acid (5-HIAA) and homovanillic acid (HVA)] in brain tissue. The method uses isocratic reversed-phase HPLC with amperometric end-point detection. The calibration curve was linear over the range 10-150 pg on-column. The assay limits of detection for NA, DA, 5-HT, 5-HIAA and HVA were 3.8, 3.8, 6.8, 5 and 7.5 pg on-column, respectively. The mean inter- and intra-assay relative standard deviations (RSDs) over the range of the standard curve were less than 5%. The absolute recoveries averaged 99.1%, 99.5%, 97.7%, 99.5% and 98.8% for NA, DA, 5-HT, 5-HIAA and HVA, respectively.
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