摘要
目的建立石茶感冒胶囊中可能残留的7种有机溶剂(正己烷、苯、甲苯、对二甲苯、邻二甲苯、苯乙烯、二乙烯苯)的检测方法。方法采用顶空气相色谱法,色谱柱为AgilentHP-INNOWAX毛细管柱(30m×1.0mm,0.53μm),载气为高纯氮气;顶空温度为70℃,顶空时间30min;柱温自30℃恒定5min,以10℃/min升温速率升至200℃,恒定5min;氢火焰离子检测器(FID),温度为250℃。结果7种有机溶剂残留物在所考察的浓度范围内线性关系良好(r=0.9994~0.9998),精密度RSD均小于5.0%,被测组分的平均回收率在99.16%~102.0%之间。结论该方法操作简便、快速、准确度高,可用于检测石茶感冒胶囊中的有机溶剂残留物。
Objective To establish a method for determination of the seven residual organic solvents (nhexane, benzene, toluene, o-dimethylbenzene, p-dimethylbenzene, styrene and divinyl benzene) in Shicha Ganmao Capsule. Methods Gas chromatography with headspace sampling was applied to the study. Agilent HP-INNOWAX silica capillary column was 30 m × 1.0 mm, 0.53 μm. The initial temperature was kept at 30 ℃ for 5 min, then the temperature was raised to 200 ℃ at the rate of 10 ℃/min and subsequently sustained for 5 min. FID detector temperature was 250 ℃. The vial temperature was 70 ℃, and the vial time was 30 min. Results There was a good linearity in the experimental concentration (r= 0. 999 4- 0. 999 8). The RSD was all less than 5.0%. The average recovery rates were in the range of 99.16%- 102.0%. Conclusion The analytical method is simple, accurate and sensitive.
出处
《现代药物与临床》
CAS
2009年第6期347-349,共3页
Drugs & Clinic
基金
云南省科技厅省科研院所技术开发研究专项(2003KFZX-28)
关键词
石茶感冒胶囊
顶空气相色谱
有机溶剂残留
残留物测定
Shicha Ganmao Capsule
gas chromatography with headspace sampling
residual organic solvent
determination of residues