火焰原子吸收分光光度法测定氟比洛芬酯原料药中镍的残留量
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篇名: 火焰原子吸收分光光度法测定氟比洛芬酯原料药中镍的残留量
TITLE:
摘要: 目的:建立测定氟比洛芬酯原料药中镍残留量的方法。方法:采用火焰原子吸收分光光度法,样品用无水乙醇溶解后直接测定。测定波长为232.0 nm,灯电流为12 mA,乙炔流量为1.6 L/min,空气流量为15 L/min,狭缝宽为0.2 nm,燃烧器高度为7 mm。结果:镍检测质量浓度线性范围为0~3 μg/ml(r=0.998 4);检测限为0.03 μg/ml;精密度、重复性试验的RSD<1%;加样回收率为96.81%~100.90%,RSD=1.3%(n=9)。结论:该方法操作简便、精密度好,结果准确、可靠,适用于测定氟比洛芬酯原料药中镍的残留量。
ABSTRACT: OBJECTIVE:To establish a method for the determination of nickel residues in flurbiprofen axetil API. METHODS: Flame atomic absorption spectrophotometry (FAAS) was conducted, the samples were directly determined by the dissolution of anhydrous ethanol. The detection wavelength was 232.0 nm; lamp electricity was 12 mA;acetylene flow was 1.6 L/min; air flow was 15 L/min; slit width was 0.2 nm; the burner height was 7 mm. RESULTS: The linear range of nickel was 0-3 μg/ml(r=0.998 4); detection limit was 0.03 μg/ml; RSDs of precision and reproducibility tests were lower than 1%; recovery was 96.81%-100.90%(RSD=1.3%,n=9). CONCLUSIONS:The method is simple with good precision, accurate and reliable, and suitable for the determination of nickel residues in flurbiprofen axetil API.
期刊: 2016年第27卷第9期
作者: 曲建国,徐秋阳
AUTHORS: QU Jianguo,XU Qiuyang
关键字: 火焰原子吸收分光光度法;氟比洛芬酯原料药;镍
KEYWORDS: Flame atomic absorption spectrometry; Flurbiprofen axetil API; Nickel
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