顶空气相色谱法同时测定保泰松原料药中6种溶剂残留量
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篇名: 顶空气相色谱法同时测定保泰松原料药中6种溶剂残留量
TITLE:
摘要: 目的:建立同时测定保泰松原料药中6种溶剂残留量的方法。方法:采用顶空气相色谱法。色谱柱为Agilent HP-5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,温度为250 ℃,载气为氮气(纯度:99.99%),载气流速为2.0 mL/min,分流比为5 ∶ 1,顶空平衡温度为60 ℃,顶空平衡时间为30 min,顶空进样量为1 mL。结果:甲醇、乙醇、异丙醇、二氯甲烷、乙酸乙酯和N,N-二甲基甲酰胺检测质量浓度线性范围分别为0.15~4.5 μg/mL(r=0. 999 9)、0.25~7.5 μg/mL( r=0. 999 7)、0.25~7.5 μg/mL( r=0. 999 7)、0.03~0.9 μg/mL( r=0. 999 3)、0.25~7.5 μg/mL(r=0. 999 3)、0.044~1.32 μg/mL( r=0. 999 3);检测限分别为0.05、0.08、0.08、0.01、0.08、0.015 μg/mL,定量限分别为0.15、0.25、0.25、0.03、0.25、0.044 μg/mL;精密度试验的RSD<2.0%,稳定性、重复性试验的RSD<3.0%;加样回收率分别为98.75%~100.12%(RSD=0.56%,n=9)、98.07%~101.20%(RSD=1.12%,n=9)、98.36%~100.80%(RSD=0.92%,n=9)、98.33%~101.67%(RSD=0.98%,n=9)、98.11%~100.40%(RSD=0.72%,n=9)、98.75%~101.05%(RSD=0.89%,n=9)。结论:该方法操作简便、准确,精密度、稳定性、重复性、耐用性好,可用于保泰松原料药中6种溶剂残留量的同时测定。
ABSTRACT: OBJECTIVE: To establish a method for simultaneous determination of residual solvents in phenylbutazone raw material. METHODS: Head-space GC was adopted. The determination was performed on Agilent HP-5 capillary column by temperature programming. The temperature of injector was 200 ℃, and detector was flame ionization detector with temperature of 250 ℃; carrier gas was nitrogen (purity:99.99%) at the flow rate of 2.0 mL/min. The split ratio was 5 ∶ 1. Headspace equilibrium temperature was 60 ℃, and equilibration time was 30 min. The sample size was 1 mL. RESULTS: The linear range was 0.15-4.5   μg/mL for methanol (r=0.999 9), 0.25-7.5 μg/mL for ethanol (r=0.999 7), 0.25-7.5 μg/mL for isopropyl alcohol (r=0.999 7), 0.03-0.9 μg/mL for dichloromethane (r=0.999 3), 0.25-7.5 μg/mL for ethyl acetate (r=0.999 3), 0.044-1.32 μg/mL for N,N-dimethyl formamide (r=0.999 3), respectively. The limits of detection were 0.05, 0.08, 0.08, 0.01, 0.08, 0.015 μg/mL. The limits of quantitation were 0.15, 0.25, 0.25, 0.03, 0.25, 0.044 μg/mL. RSDs of precision test were lower than 2.0%. RSDs of stability and reproducibility tests were lower than 3.0%. The recoveries were 98.75%-100.12% (RSD=0.56%, n=9), 98.07%-101.20% (RSD=1.12%, n=9), 98.36%-100.80% (RSD=0.92%, n=9), 98.33%-101.67% (RSD=0.98%, n=9), 98.11%-100.40% (RSD=0.72%, n=9) and 98.75%-101.05% (RSD=0.89%, n=9). CONCLUSIONS: The method is simple, accurate, precise, stable, reproducible and durable, and can be used for simultaneous determination of 6 residual solvents in phenylbutazone raw material.
期刊: 2019年第30卷第6期
作者: 张西如,孙婷,王琛,刘云
AUTHORS: ZHANG Xiru,SUN Ting,WANG Chen,LIU Yun
关键字: 保泰松;顶空气相色谱法;溶剂残留量;甲醇;乙醇;异丙醇;二氯甲烷;乙酸乙酯;N,N-二甲基甲酰胺
KEYWORDS: Phenylbutazone raw material; Head-space GC; Residual solvent; Methanol; Ethanol; Isopropyl alcohol; Dichloromethane; Ethyl acetate; N, N-dimethyl formamide
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