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机构地区:[1]西北大学化学系,西安710069
出 处:《药物分析杂志》2006年第8期1121-1123,共3页Chinese Journal of Pharmaceutical Analysis
基 金:陕西省教委基金项目(03JK075);陕西省自然科学基金(2005B18)
摘 要:目的:采用高效液相色谱法测定环磷腺苷针剂的含量及有关物质。方法:采用 ODS C_(18)色谱柱(4.6 mm×150 mm,5μm),以甲醇-0.025 mol·L^(-1)磷酸二氢钠缓冲液(二水合磷酸二氢钠1.95g 加水至500 mL,用磷酸调 pH 至5.0)(10:90)为流动相,流速0.8 mL·min^(-1),于254nm 测定。结果:HPLC 法测定的线性范围为0.04~0.4 mg·mL^(-1),r=0.9999,最低检测限0.24 ng,对照品溶液在8 h 内稳定,日内和日间精密度(RSD<1.2%)良好。回收率为99.87%。结论:采用 HPLC 法测定环磷腺苷及有关物质的方法简便,结果可靠。Objective:To determine the content and the related substances of adenosine cyclophosphate by HPLC Methods: The column : ODS C18 column (4.6 mm × 150 mm,5 μm) ; The mobile phase : methanol - NaH2 PO4 buffer (0. 025 mol 2 L^-1monobasic sodium phosphate,adjust pH to 5.0 by phosphoric acid) ( 10: 90) ;The flow rate:0. 8 mL · min^- 1 ;The content of adenosine cyclophosphate and its related substances were detected at 254 nm on the same condition. Results : The linear range of the determination by HPLC was 0. 04 - 0. 4 mg · mL ^- 1 ; The correlation coefficient was 0. 9999 ; The least detective range was 0. 24 ng; The sample solution was stable within 8 h ; The precision of intra - day and inter - day were good ( RSD 〈 1.2% ). The recovery result was 99.87%. Conclusion : The method to determine the content and related substances of adenosine cyclophosphate by HPLC is easy to operate and the results of the determination are accurate.
分 类 号:R917[医药卫生—药物分析学]
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