顶空气相色谱法同时测定醒脑静注射液中6种有机溶剂的残留量
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篇名: 顶空气相色谱法同时测定醒脑静注射液中6种有机溶剂的残留量
TITLE:
摘要: 目的:建立同时测定醒脑静注射液中甲醇、乙醇、异丙醇、正丁醇、乙酸乙酯、乙腈6种有机溶剂残留量的的方法。方法:采用顶空气相色谱法。色谱柱为DB-624毛细管柱,程序升温,进样口温度为200 ℃,检测器为氢火焰离子化检测器,检测器温度为250 ℃,载气为氮气,氮气流速为25 mL/min,分流比为35 ∶ 1,顶空进样量为1 mL,顶空加热温度为80 ℃,平衡时间为15 min。结果:甲醇、乙醇、异丙醇、正丁醇、乙酸乙酯、乙腈检测质量浓度线性范围分别为15.00~240.00 μg/mL(r=0.999 9 )、25.00~400.00 μg/mL(r=0.999 9)、25.00~400.00 μg/mL(r=0.999 9 )、25.00~399.99 μg/mL(r=0.999 9 )、25.00~399.99 μg/mL(r=0.999 8)、5.00~80.00 μg/mL(r=0.999 9);定量限分别为5.98、3.94、2.05、2.13、1.39、1.24 μg/mL,检测限分别为2.01、2.11、1.18、1.56、1.15、0.01 μg/mL;精密度试验的RSD均<2.0%,稳定性、重复性试验只检出乙酸乙酯,其RSD<2.0%;回收率分别为 93.59%~99.02%(RSD=2.62%,n=6)、92.42%~98.40%(RSD=2.43%,n=6)、94.81%~104.64%(RSD=3.47%,n=6)、94.56%~106.73%(RSD=4.21%,n=6)、97.04%~106.33%(RSD=3.50%,n=6)、98.40%~107.97%(RSD=3.37%,n=6)。结论:该方法专属性强,操作简便快速,结果准确,可用于醒脑静注射液中6种有机溶剂残留量的同时测定。
ABSTRACT: OBJECTIVE: To establish the method for simultaneous determination of 6 residual organic solvents in Xingnaojing injection, such as methanol, ethanol, isopropanol, n-butanol, ethyl acetate and acetonitrile. METHODS: Headspace GC method was adopted. The determination was performed on DB-624 capillary column by temperature programming with the injector temperature of 200 ℃; flame ionization detector was adopted with the temperature of 250 ℃; carrier gas was nitrogen with flow rate of 25 mL/min and split ratio of 35 ∶ 1; headspace sampling size was 1 mL, and heating temperature of headspace sampling was 80 ℃; equilibrium time was 15 min. RESULTS: The linear ranges of methanol, ethanol, isopropanol, n-butanol, ethyl acetate and acetonitrile were 15.00-240.00 μg/mL(r=0.999 9),25.00-400.00 μg/mL(r=0.999 9),25.00-400.00 μg/mL(r=0.999 9), 25.00-399.99 μg/mL(r=0.999 9),25.00-399.99 μg/mL(r=0.999 8) and 5.00-80.00 μg/mL(r=0.999 9). The LOQ were 5.98, 3.94, 2.05, 2.13, 1.39, 1.24 μg/mL, and the LOD were 2.01, 2.11, 1.18, 1.56, 1.15, 0.01 μg/mL, respectively. RSDs of precision tests were all less than 2.0%,stability and repetitive tests only ethyl acetate was detected,RSD<2.0%; the recoveries were 93.59%-99.02%(RSD=2.62%,n=6), 92.42%-98.40%(RSD=2.43%,n=6),94.81%-104.64%(RSD=3.47%,n=6),94.56%-106.73%(RSD=4.21%,n=6), 97.04%-106.33%(RSD=3.50%,n=6) and 98.40%-107.97% (RSD=3.37%,n=6). CONCLUSIONS: The method is specific, rapid, simple and accurate, and can be used for simultaneous determination of 6 residual organic solvents in Xingnaojing injection.
期刊: 2017年第28卷第27期
作者: 黄卫娟,杨丽玲,王淑芬,黄肖梅,何秀云,姜松,林绘
AUTHORS: HUANG Weijuan,YANG Liling,WANG Shufen,HUANG Xiaomei,HE Xiuyun,JIANG Song,LIN Hui
关键字: 顶空气相色谱法;醒脑静;有机溶剂;残留量;甲醇;乙醇;异丙醇;正丁醇;乙酸乙酯;乙腈
KEYWORDS: Headspace GC; Xingnaojing; Organic solvent; Residual; Methanol; Ethanol; Isopropanol; n-butanol; Ethyl acetate; Acetonitrile
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