顶空毛细管GC法测定盐酸苯海拉明原料药中乙醇、甲苯的残留量 点击下载
论文标题: 顶空毛细管GC法测定盐酸苯海拉明原料药中乙醇、甲苯的残留量
英文标题:
中文摘要: 目的:建立测定盐酸苯海拉明原料药中乙醇、甲苯残留量的方法。方法:采用顶空毛细管气相色谱法,以丁酮为内标。色谱柱为Agilent DB-624弹性石英毛细管柱,进样口温度为200 ℃,氢火焰离子化检测器温度为250 ℃,载气为高纯氮气,流速为3.0 ml/min,柱温为程序升温,进样方式为分流进样,分流比为20 ∶ 1,顶空平衡温度为80 ℃,平衡时间为30 min,进样时间为1 min。结果:在该色谱条件下,乙醇、甲苯与内标峰能得到良好分离;乙醇、甲苯的检测质量浓度线性范围均为0.02~0.8 mg/ml(r=0.999 8、0.999 4);精密度、稳定性、重复性试验的RSD<3%,乙醇、甲苯的加样回收率分别为95.50%~103.50%、96.91%~103.74%,RSD分别为2.6%、2.2%(n=9)。结论:该方法简单、灵敏、准确,可用于盐酸苯海拉明原料药中乙醇、甲苯残留量的测定。
英文摘要: OBJECTIVE: To establish a method for the determination of residual solvent of ethanol and toluene in diphenhydramine hydrochloride raw material. METHODS: Headspace capillary gas charmatography and butanone as internal standard were used. The column was Agilent DB-624 capillary column, inlet temperature was 200 ℃, hydrogen flame ionization detector was 250 ℃, the carried gas was high purity nitrogen, flow rate was 3.0 ml/min with temperature programmed, the splitting-ratio was 20 ∶ 1, the containers of headspace injector were in equilibrium at 80 ℃ for 30 min, and the injection time was 1 min. RESULTS: With this chromatographic condition, ethanol, toluene and internal standard peak were well separated; there was a good linear relationship of ethanol and toluene in the range of 0.02-0.8 mg/ml (r=0.999 8 and r=0.999 4); RSDs of precision and stability test were lower than 3%; recoveries were 95.50%-103.50%(RSD=2.6%,n=9) and 96.91%-103.74% (RSD=2.2%,n=9). CONCLUSIONS: The method is simple, sensitive and accurate, and can be used for the determination of residual solvent of ethanol and toluene in diphenhydramine hydrochloride raw material.
期刊: 2016年第27卷第18期
作者: 谈学惠,漆秋兰,刘国强,傅应华
英文作者: TAN Xuehui,QI Qiulan,LIU Guoqiang,FU Yinghua
关键字: 顶空毛细管气相色谱法;盐酸苯海拉明原料药;残留溶剂;乙醇;甲苯
KEYWORDS: Headspace capillary gas charmatography; Diphenhydramine hydrochloride raw material; Residual solvent; Ethanol; Toluene
总下载数: 81次
本日下载数: 2次
本月下载数: 81次
文件大小: 619.60Kb

* 注:未经本站明确许可,任何网站不得非法盗链资源下载连接及抄袭本站原创内容资源!在此感谢您的支持与合作!