摘要
目的 :建立用顶空进样—毛细管气相色谱法测定薏苡仁油中石油醚 (6 0～ 90°C)残留量测定方法。方法 :顶空进样 ,交联 95 %二甲基和 5 %二苯基硅氧烷的弹性石英毛细管柱 (30m× 32 0 μm× 0 .2 5 μm) ,柱温 :40°C ,流速 :19cm/s,FID检测器。结果 :该法平均回收率为 97.2 % (n =5 ,RSD =2 .87% ) ,最低检测限为 2 .6 5× 10 -8g·mL-1(信噪比为 1.3)。结论 :该法操作简单、准确 ,可作为本品有机溶剂残留量限度检测方法。
Objective: To establish a HS CGC method for the analysis of residual petroleum ether (60～90°C) in Kanglaite Capsules.Methods: Headspace sampling, a fused silica analytical column with cross linked 95% dimethyl and 5% diphenyl siloxanes station phase (30m×320μm×0.25μm), column temperature at 40°C, a linear velocity of about 19 cm per second, FID detector.Results: The average recovery is 97.2% (RSD=2.87%, n=5). The minimal detection limit is 2.65×10 -8 g·mL -1 (signal/noise=1.3).Conclusion: The method is simple and accurate, and can be used as a control method for the residual organic solvent in the capsules.
出处
《中成药》
CAS
CSCD
北大核心
2001年第2期127-128,共2页
Chinese Traditional Patent Medicine
