气相色谱法测定六味地黄苷糖原料药中的7种残留溶剂
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篇名: 气相色谱法测定六味地黄苷糖原料药中的7种残留溶剂
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摘要: 目的:建立测定六味地黄苷糖原料药中7种残留溶剂(乙醇、正己烷、苯、甲苯、二甲苯、苯乙烯、二乙烯苯)的方法。方法:色谱条件:色谱柱为DB-624弹性石英毛细管柱,载气为高纯氮气,流速为5.0 ml/min,检测器为氢火焰离子化检测器,检测器温度为250 ℃(程序升温);顶空条件:平衡温度为80 ℃,样品环温度为90 ℃,传输线温度为100 ℃,样品瓶加热平衡时间为30 min,定量环填充时间为0.5 min,定量环平衡时间为0.05 min,进样时间为1.0 min,载气压力为95 kpa,样品瓶压力为60 kpa。结果:乙醇、正己烷、苯、甲苯、二甲苯、苯乙烯、二乙烯苯检测质量浓度线性范围分别为25~500(r=0.998 7)、0.025~10(r=0.998 8)、0.025~10(r=0.999 9)、0.1~40(r=1.000 0)、0.25~100(r=0.999 9)、0.5~500(r=1.000 0)、0.5~500 μg/ml(r=1.000 0);精密度、稳定性、重复性试验的RSD<4%;加样回收率分别为99.60%~102.70%(RSD=1.08%,n=9)、90.70%~100.30%(RSD=4.51%,n=9)、100.10%~109.80%(RSD=3.82%,n=9)、99.50%~110.00%(RSD=4.40%,n=9)、100.00%~109.10%(RSD=3.50%,n=9)、93.40%~102.30%(RSD=3.73%,n=9)、99.70%~101.70%(RSD=0.79%,n=9);检测限分别为1.000、0.025、0.025、0.025、0.100 、0.025、0.250 μg/ml。结论:该方法操作简便、稳定、重复性好,可用于六味地黄苷糖原料药中残留溶剂乙醇、正己烷、苯、甲苯、二甲苯、苯乙烯、二乙烯苯的测定。
ABSTRACT: OBJECTIVE:To establish a method for the determination of 7 residual solvents (ethanol, n-hexane, benzene, toluene, xylene, styrene, divinylbenzene) in Liuwei dihuang glycoside. METHODS: The column was DB-624 capillary column, carrier gas was nitrogen, flow rate was 5.0 ml/min; detector was a hydrogen flame ionization detector with temperature of 250 ℃ (programmed temperature); equilibrium temperature was 80 ℃, sample loop temperature was 90 ℃, and transfer line temperature was 100 ℃; the equilibrium time of vial heating was 30 min, sample loop filling time was 0.05 min, injection time was 1.0 min; the carrier gas pressure was 95 kpa, and the vial pressure was 60 kpa. RESULTS: The linear range was 25-500 μg/ml for ethanol(r=0.998 7), 0.025-10 μg/ml for n-hexane (r=0.998 8),0.025-10 μg/ml for benzene (r=0.999 9), 0.1-40 μg/ml for toluene(r=1.000 0), 0.25-100 μg/ml for xylene(r=0.999 9),0.5-500 μg/ml for styrene(r=1.000 0) and 0.5-500 μg/ml for divinylbenzene (r=1.000 0); RSDs of precision, stability and reproducibility tests were lower than 4%; recoveries were 99.60%-102.70% (RSD=1.08%,n=9),90.70%-100.30%(RSD=4.51%,n=9),100.10%-109.80%(RSD=3.82%,n=9), 99.50%-110.00% (RSD=4.40%,n=9),100.00%-109.10%(RSD=3.50%,n=9), 93.40%-102.30%(RSD=3.73%,n=9) and 99.70%-101.70% (RSD=0.79%,n=9), respectively; the low limits of detection were 1.000, 0.025,0.025,0.025,0.100,0.025,0.250 μg/ml respectively. CONCLUSIONS: The method is simple, stable and reproducible, and can be used for the determination of residual solvents (ethanol, n-hexane, benzene, toluene, xylene, styrene, divinylbenzene) in Liuwei dihuang glycoside.
期刊: 2016年第27卷第6期
作者: 仲海洁,胡军华,王晓娇,乔善义,吴云,王振中,萧伟
AUTHORS: ZHONG Haijie,HU Junhua,WANG Xiaojiao,QIAO Shanyi,WU Yun,WANG Zhenzhong,XIAO Wei
关键字: 六味地黄苷糖;顶空气相色谱法;残留溶剂
KEYWORDS: Liuwei dihuang glycoside; Headspace gas chromatography; Residual solvent
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