& >999.901) for HPLC and RRLC, respectively. The suggested methods were validated in compliance with the ICH and USP guidelines. The assay methods were successfully used to estimate BUP in Wellbutrin® 150 SR tablets and good percentage recoveries were obtained. The developed methods were statistically compared with the official USP methods and compared favourably with no significant difference in terms
已经开发,优化和验证了两种简单,特异和精确的指示稳定性的色谱方法,用于测定散装粉末,药物制剂中以及在其
水解和氧化降解产物及其存在下
安非他酮HCl(B
UP)的纯度。共同使用药物
尼古丁(NIC)。第一种方法是基于使用高效
液相色谱(HPLC)确定所引用药物的方法。使用Intertsil ODS3(250×4.6 mm内径,粒径为5μm)色谱柱可将B
UP与其降解产物和NIC充分分离。该方法用于研究B
UP的碱性和氧化降解过程的动力学,其中计算了速率常数,半衰期和活化能。第二种方法基于在XDB C18(50×4.6 mm内径,1.8μm粒径)色谱柱上使用快速分离
液相色谱(RRLC)分离B
UP及其降解产物的方法。线性范围为5–100和2–20μgmL-1的LOD为1.33和0.2μgmL -1分别用于HPLC和RRLC方法。两种方法的定量均基于将分离与B
UP和NIC在250 nm处以及降解产物在224