title: β-Cyclodextrin sensitized spectrofluorimetry for the determination of abiraterone acetate and abiraterone.
abstract: A novel spectrofluorimetric method to determine abiraterone acetate and its active metabolite, abiraterone was developed, based on the fact that fluorescence intensity of abiraterone acetate and abiraterone could be enhanced in β-cyclodextrin (β-CD) due to the formation of the inclusion complex. The inclusion interaction of β-CD and abiraterone acetate and the β-cyclodextrin sensitized spectrofluorimetry was examined. The various factors influencing fluorescence were discussed in details. The results showed that under the optimized conditions, the linear range of calibration curve for the determination of biraterone acetate and abiraterone was 0.20 ~ 6.0 μg/mL, and the detection limit (LOD) was 6.8 (r = 0.997) or 6.6 ng/mL (r = 0.996), respectively. No interference was observed from common co-existing substances or pharmaceutical excipient. The method was successfully applied to the analysis of abiraterone acetate in pharmaceutical formulation and abiraterone in human serum/urine.
authors.affiliation: College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, China.
authors.forename: Aiqin
authors.initials: A
authors.lastname: Gong
authors.forename: Xiashi
authors.initials: X
authors.lastname: Zhu
mesh_terms: D000069501:Abiraterone Acetate; D000730:Androstadienes / Q000097:blood* / Q000652:urine*; D000736:Androstenes; D000737:Androstenols / Q000097:blood* / Q000652:urine*; D005456:Fluorescent Dyes / Q000737:chemistry*; D064368:Healthy Volunteers; D006801:Humans; D006863:Hydrogen-Ion Concentration; D015394:Molecular Structure; D009994:Osmolar Concentration; D013050:Spectrometry, Fluorescence / Q000295:instrumentation / Q000379:methods*; D013696:Temperature; D013997:Time Factors; D047392:beta-Cyclodextrins / Q000737:chemistry*
chemical_list: D000730:Androstadienes; D000736:Androstenes; D000737:Androstenols; D005456:Fluorescent Dyes; D047392:beta-Cyclodextrins; D000069501:Abiraterone Acetate; C089740:abiraterone; C031215:betadex