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顶空毛细管气相色谱法测定异丙托溴铵中7种残留有机溶剂
引用本文:朱蓉,李欣,曹俊涵. 顶空毛细管气相色谱法测定异丙托溴铵中7种残留有机溶剂[J]. 药学进展, 2014, 0(2): 146-149
作者姓名:朱蓉  李欣  曹俊涵
作者单位:成都市食品药品检测中心,四川成都610045
摘    要:目的:建立顶空毛细管气相色谱法,测定异丙托溴铵中甲醇、丙酮、异丙醇、二氯甲烷、乙酸乙酯、三氯甲烷、甲苯等7种有机溶剂残留量。方法:色谱柱:DM-624(聚乙二醇PEG-20M)毛细管柱(30.0m×O.53mm,3.00μm);载气:氮气,流速为2.0mL·min-1;柱温:程序升温,初始温度为40℃,保持5min然后以6℃·min-1升温到150℃,再以50℃·min-1升温到230℃,保持3min;检测器:氢火焰离子化检测器,温度为250℃;进样口温度:240℃;顶空进样量:1.0mL。结果:甲醇、丙酮、异丙醇、二氯甲烷、乙酸乙酯、三氯甲烷和甲苯分别在15.02-900.92mg·L-1(r=0.9999)、21.03—1262.00mg·L-1(r=0.9999)、21.30-1278.16mg·L-1(r=0.9999)、7.80-468.25mg·L-1(r=0.9998)、22.22-1332.97mg·L-1(r=0.9999)、0.31-18.79mg·L-1(r=0.9992)和3.48-209.02mg·L-1(r=0.9998)范围内线性关系良好.平均回收率分别为98.1%(RSD=0.19%)、100.1%(RSD=1.08%)、101.4%(RSD=1.03%)、98.1%(RSD=0.40%)、98.1%(RSD=1.55%)、98.9%(RSD=3.08%)和101.8%(RSD=2.12%)。结论:该方法简便、灵敏、重复性好,结果准确,适用于异丙托溴铵中残留有机溶剂的检测。

关 键 词:顶空毛细管气相色滔去  异丙托溴铵  残留有机溶剂

Determination of Seven Residual Organic Solvents in Ipratropium Bromide by Headspace Capillary Gas Chromatography
ZHU Rong,LI Xin,CAO Junhan. Determination of Seven Residual Organic Solvents in Ipratropium Bromide by Headspace Capillary Gas Chromatography[J]. Progress in Pharmaceutical Sciences, 2014, 0(2): 146-149
Authors:ZHU Rong  LI Xin  CAO Junhan
Affiliation:(Chengdu Center of Food and Drug Control, Chengdu 610045, China)
Abstract:Objective: To establish a headspace capillary gas chromatography method for the determination of seven organic solvent residues including methanol, acetone, isopropanol, methylene dichloride, ethyl acetate, chlorotbrm and toluene, in ipratropimn bromide.Methods: A DM- 624(polyethylene glycol PEG-20M) capillary column (30.0m x 0.53mm, 3.00gm) was used witb nitrogen as carrier gas at a tlow rate of 2.0 mL · min-1, a hydrogen flame ionization detector (FID) at a temperature of 250 ℃ , an inlet temperature of 240℃ and a headspace sampling volume of 1.0 mL. The column oven was temperature-programmed as follows: the initial temperature was 40℃ tbr 5 min and then the temperature increased to 150℃, at 6℃ · min-1 and to 230℃ at 50℃ · min-1 for 3 min. Results : The linear ranges of the seven solvents were 15.02-900.92 mg ·L-1 (r=-0.999 9) for methanol, 21.03-1 262.00 mg ·L-1 (r=0.999 9) for acetone, 21.30-1 278.16 mg ·L-1 (r=0.999 9) tbr isopropanol, 7.80-468.25 mg·L-1 (r=0.999 8) tbr methylene dichloride, 22.22-1 332.97 mg·L-1 (r=-0.999 9) tbr ethyl acetate, 0.31-18.79 mg ·L-1 (r=-0.999 2) for chlorotbrm and 3.48-209.02 mg·L-1 (r=-0.999 8) for toluene, respectively. Their average recoveries were 98.1% (RSD=0.19%) for methanol, 100.1% (RSD= 1.08%) for acetone, 101.4% (RSD=1.03%) tbr isopropanol, 98.1% (RSD=0.40%) for methylene dichloride, 98.1% (RSD=1.55%) for ethyl acetate, 98.9% (RSD=3.08%) for chlorotbrm and 101.8% (RSD=2.12%) tbr toluene, respectively. Conclusion : The method is simple, sensitive, reproducible and accurate. It is suitable tbr the determination of residual organic solvents in ipratropium bromide.
Keywords:headspace capillary gas chromatography  ipratropium bromide  residual organic solvent
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