RP-HPLC法测定洛索洛芬钠片的含量及有关物质
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篇名: RP-HPLC法测定洛索洛芬钠片的含量及有关物质
TITLE:
摘要: 目的:改进测定洛索洛芬钠片中主成分含量及有关物质的方法。方法:采用反相高效液相色谱法。色谱柱为迪马Inspire C18,流动相为乙腈-0.01 mol/L磷酸二氢钾溶液(含0.2%三乙胺,磷酸调节pH至3.0±0.1)(62 ∶ 38,V/V),流速为1.0 mL/min,柱温为40 ℃,检测波长为221 nm,进样量为20 μL。结果:洛索洛芬钠峰与相邻杂质峰达到良好分离(分离度>1.5);洛索洛芬钠检测质量浓度线性范围为30.0~90.0 μg/mL(r=0.999 8);洛索洛芬钠检测限为0.3 μg/mL;精密度、稳定性、重复性试验的RSD<1.0%;回收率为99.00%~99.87%,RSD=0.33%(n=9)。结论:该方法准确、简便、快速,适用于洛索洛芬钠片的质量控制。
ABSTRACT: OBJECTIVE: To improve the determination method for the contents of main components and related substances in Loxoprofen sodium tablets. METHODS: RP-HPLC method was adopted. The determination was performed on Inspire C18 column with mobile phase consisted of acetonitile-0.01 mol/L potassium dihydrogen phosphate (containing 0.2% triethylamine, phosphoric acid adjusted to 3.0±0.1,62 ∶ 38,V/V) at the flow rate of 1.0 mL/min. The column temperature was 40 ℃, and the detection wavelength was set at 221 nm. The sample size was 20 μL. RESULTS: The peak of loxoprofen sodium was well separated with the peak of its related substances (R>1.5). The linear range of loxoprofen sodium ranged 30.0-90.0 μg/mL (r=0.999 8). The detection limit of loxoprofen was 0.3 μg/mL. RSDs of precision, stability and repeatability tests were <1.0%. The average recovery rates ranged 99.00%-99.87% (RSD=0.33%,n=9). CONCLUSIONS: This method is accurate, simple, rapid and suitable for the quality control of Loxoprofen sodium tablets.
期刊: 2017年第28卷第15期
作者: 袁浩宇,王鹏,易红,俞瑜
AUTHORS: YUAN Haoyu,WANG Peng,YI Hong,YU Yu
关键字: 反相高效液相色谱法;洛索洛芬钠片;含量;有关物质
KEYWORDS: RP-HPLC; Loxoprofen sodium tablets; Content; Related substances
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