顶空气相色谱法测定单磷酸阿糖腺苷原料药中5种残留溶剂
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篇名: | 顶空气相色谱法测定单磷酸阿糖腺苷原料药中5种残留溶剂 |
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摘要: | 目的:建立测定单磷酸阿糖腺苷原料药中乙醇、乙腈、二氯甲烷、乙酸乙酯、吡啶5种残留溶剂的方法。方法:采用顶空进样气相色谱法。色谱柱为Agilent 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,检测温度为250 ℃,载气为氮气,流速为3 ml/min,进样方式为分流进样,分流比为1 ∶ 1,顶空平衡温度为100 ℃,平衡时间为45 min,进样量为1 ml。按外标法进行定量分析。结果:5种残留溶剂峰分别与相邻峰分离完全。乙醇、乙腈、二氯甲烷、乙酸乙酯、吡啶的检测质量浓度线性范围为24.7~296.3 μg/ml(r=0.999 6)、1.9~23.2 μg/ml(r=0.999 0)、2.8~33.6 μg/ml(r=0.998 0)、24.7~295.9 μg/ml(r=0.999 5)、1.0~11.9 μg/ml(r=0.998 6);精密度、重复性试验的RSD≤4.35%;加样回收率分别为102.4%、102.1%、105.5%、100.3%、98.3%,RSD分别为2.0%、3.4%、4.8%、4.8%、4.0%;定量限为0.304 4~0.988 0 μg/ml,检测限为0.101 5~0.329 3 μg/ml。结论:该方法简单、准确、重复性好,可用于单磷酸阿糖腺苷中5种原料药残留溶剂的检测。 |
ABSTRACT: | OBJECTIVE: To establish a method for the determination of ethanol, acetonitrile, dichloromethane, ethyl acetate, pyridine in vidarabine monophosphate. METHODS: Headspace GC was performed on the column of Agilent DB-624, programmed temperature, inlet temperature was 200 ℃, the detector was flame ionization detector, detecting temperature was 250 ℃, nitrogen was carrier gas, flow rate was 3 ml/min, split ratio was 1 ∶ 1, the top bottles equilibrium temperature was 100 ℃, and equilibrium time was 45 min, injection volume was 1 ml. external standard was used for quantitative analysis. RESULTS: The peaks of five residual solvents could be completely separated from the other peaks respectively,The linear rang was 24.7-296.3 μg/ml for ethanol(r=0.999 6)、1.9-23.2 μg/ml for acetonitrile(r=0.999 0), 2.8-33.6 μg/ml for dichloromethane(r=0.998 0), 24.7-295.9 μg/ml for ethyl acetate(r=0.999 5), 1.0-11.9 μg/ml for pyridine(r=0.998 6); RSDs of precision and reproducibility tests were lower than 4.35%;recoveries were 102.4%(RSD=2.0%,n=9)、102.1%(RSD=3.4%,n=9)、105.5%(RSD=4.8%,n=9)、100.3%(RSD=4.8%,n=9)、98.3%(RSD=4.0%,n=9). The minimum quantifation limit was 0.304 4-0.988 0 μg/ml and the minimum detection limit was 0.101 5-0.329 3 μg/ml. CONCLUSIONS: The method is simple, accurate and reproducible, and can be used for the determination of residual solvents in vidarabine monophosphate. |
期刊: | 2016年第27卷第24期 |
作者: | 焦旭雯,陈华,梁蔚阳 |
AUTHORS: | JIAO Xuwen,CHEN Hua,LIANG Weiyang |
关键字: | 单磷酸阿糖腺苷;顶空气相色谱法;残留溶剂;检测 |
KEYWORDS: | Vidarabine monophosphate; Headspace GC; Residual solvent; Determination |
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