顶空毛细管气相色谱法同时测定阿瑞匹坦原料药中6种有机溶剂的残留量
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篇名: 顶空毛细管气相色谱法同时测定阿瑞匹坦原料药中6种有机溶剂的残留量
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摘要: 目的:建立同时测定阿瑞匹坦原料药中甲醇、乙醇、丙酮、异丙醇、甲基叔丁基醚、四氢呋喃6种有机溶剂残留量的方法。方法:采用顶空毛细管气相色谱法。色谱柱为DB-624毛细管柱,程序升温,进样口温度为180 ℃,检测器为氢火焰离子化检测器,检测器温度为260 ℃,载气为氮气,氮气流速为3.0 mL/min,分流比为5 ∶ 1,顶空进样量为1.0 mL,顶空平衡温度为80 ℃,平衡时间为40 min。结果:甲醇、乙醇、丙酮、异丙醇、甲基叔丁基醚、四氢呋喃检测质量浓度线性范围分别为 6.052~605.232 μg/mL(r=0.999 9)、9.987~998.718 μg/mL(r=0.999 9)、9.998~999.768 μg/mL(r=0.999 8)、9.986~998.634 μg/mL(r=0.999 9)、9.991~999.090 μg/mL(r=0.999 7)、1.461~146.133 μg/mL(r=0.999 5);定量限分别为1.782 1、2.079 0、0.749 8、1.777 8、0.223 1、0.607 0 μg/mL,检测限分别为0.594 0、0.693 0、0.249 9、0.592 6、0.074 4、0.202 3 μg/mL;精密度试验的RSD<2.0%,稳定性、重复性试验中只检出丙酮和异丙醇,RSD<2.0%;加样回收率范围分别为99.34%~100.75%(RSD=0.52%,n=9)、98.20%~100.24%(RSD=0.69%,n=9)、98.07%~100.07%(RSD=0.84%,n=9)、99.86%~101.32%(RSD=0.58%,n=9)、97.87%~104.02%(RSD=2.13%,n=9)、98.26%~100.58%(RSD=0.75%,n=9)。结论:该方法简便、准确、重复性好,适用于同时测定阿瑞匹坦原料药中6种有机溶剂的残留量。
ABSTRACT: OBJECTIVE: To establish a method for simultaneous determination of 6 residual organic solvents in aprepitant raw material as methanol, ethanol, acetone, isopropyl alcohol, methyl tert-butyl ether and tetrahydrofuran. METHODS: Headspace capillary gas chromatography was adopted. The determination was performed on DB-624 capillary column using temperature progra- mming. The temperature of injector port was 180 ℃, and flame ionization detector was used with temperature of 260 ℃. Nitrogen was used as carrier gas with flow rate 3.0 mL/min. The spilt ratio was 5 ∶ 1, and head-space injection volume was 1.0 mL. The head-space equilibrium temperature was set at 80 ℃, and equilibrium time was 40 min. RESULTS:The linear ranges of methanol, ethanol, acetone, isopropyl alcohol, methyl tert-butyl ether, tetrahydrofuran were 6.052-605.232 μg/mL(r=0.999 9), 9.987-998.718 μg/mL(r=0.999 9), 9.998-999.768 μg/mL(r=0.999 8), 9.986-998.634 μg/mL(r=0.999 9), 9.991-999.090 μg/mL(r=0.999 7), 1.461-146.133 μg/mL(r=0.999 5), respectively. The limits of quantitation were 1.782 1,2.079 0,0.749 8,1.777 8, 0.223 1,0.607 0 μg/mL; the limits of detection were 0.594 0,0.693 0,0.249 9,0.592 6,0.074 4, 0.202 3 μg/mL, respectively. RSD of precision test was lower than 2.0%. Only acetone and isopropyl alcohol were detected in stability test and reproducibility tests,RSD<2.0%. Their recoveries were 99.34-100.75%(RSD=0.52%,n=9),98.20%-100.24%(RSD=0.69%,n=9), 98.07%-100.07%(RSD=0.84%,n=9), 99.86%-101.32%(RSD=0.58%,n=9),97.87%-104.02%(RSD=2.13%,n=9), 98.26%-100.58%(RSD=0.75%,n=9), respectively. CONCLUSIONS: The established method is simple, accurate and reproducible, and can be used for simultaneous determination of 6 residual organic solvents in aprepitant raw material.
期刊: 2017年第28卷第24期
作者: 郑瑞凤,杨晨,任凤英,贾红倩,冉琳,秦其辉,苟小军,冯菊
AUTHORS: ZHENG Ruifeng,YANG Chen,REN Fengying,JIA Hongqian,RAN Lin,QIN Qihui,GOU Xiaojun,FENG Ju
关键字: 顶空毛细管气相色谱法;阿瑞匹坦;有机溶剂;残留量
KEYWORDS: Headspace capillary gas chromatography; Aprepitant; Organic solvent; Residual
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