relation: http://repository.uhamka.ac.id/id/eprint/348/ title: SIMULTANEOUS ANALYTICAL METHOD DEVELOPMENT OF 6-MERCAPTO¬PURINE AND 6-METHYLMERCAPTOPURINE IN PLASMA BY HIGH PERFOR¬MANCE LIQUID CHROMATOGRAPHY-PHOTODIODE ARRAY creator: Supandi, Supandi creator: Yahdiana Harahap, Yahdiana creator: Nurul Azizah, Nurul creator: Rizka Andalusia, Rizka subject: RS Pharmacy and materia medica description: Objective: 6-Mercaptopurin is antineoplastic drug that is included in antimetabolite group and is used in acute lymphoblastic leukemia medication. 6-Mercaptopurin is inactive pro-drug that will be metabolized into metabolites. One of its metabolites is 6-methylmercaptopurine. This study is aimed to optimize the analytical conditions and perform validation for the analysis of 6-mercaptopurine and 6-methylmercaptopurine in plasma. Method: Separation was performed using Waters 2996 HPLC, C18 SunfireTM column (5μm, 250 x 4.6 mm) with the mobile phase containing water-methanol-acetonitrile with gradient elution, and detected at 303 nm. 5-Fluorouracil was used as internal standard. Plasma extraction was done by liquid-liquid extraction using dichloromethane. Result: The method was linear at concentration range of 2.0 – 200.0 ng/mL with r > 0.9991 for 6-mercaptopurine and 20 – 2000 ng/mL with r > 0.9993 for 6-methylmercaptopurine. Accuracy and precision within-run and between-run fulfill the acceptance criteria with % RE and relative standard deviation (% RSD) ≤ 20% (LLOQ) and ≤ 15% (QC samples). 6-Mercaptopurine and 6-methylmercaptopurine was stable in plasma at least for 21 days when stored at -20ºC. Conclusion: The bio-analytical method was sensitive, selective and all the parameters fulfilled the acceptance criteria of the EMA Bio-analytical Method Validation Guideline, 2011. date: 2017 type: Article type: PeerReviewed format: text language: en identifier: http://repository.uhamka.ac.id/id/eprint/348/1/jurnal%20Young%20Pharm.pdf identifier: Supandi, Supandi dan Yahdiana Harahap, Yahdiana dan Nurul Azizah, Nurul dan Rizka Andalusia, Rizka (2017) SIMULTANEOUS ANALYTICAL METHOD DEVELOPMENT OF 6-MERCAPTO¬PURINE AND 6-METHYLMERCAPTOPURINE IN PLASMA BY HIGH PERFOR¬MANCE LIQUID CHROMATOGRAPHY-PHOTODIODE ARRAY. Journal of Young Pharmacists, 9 (1). s29-s34. ISSN 0975-1483 relation: http://doi.org/10.5530/jyp.2017.1s.8