摘要
目的通过溪黄草中二萜成分含量测定方法的建立及商品药材质量分析,为溪黄草质量标准的制定提供依据。方法采用RP-HPLC法测定6,7-去氢罗伊林酮和(15S)-12,16-环氧-11,14-二羟基-8,11,13-松香烷-7-酮的含量;流动相:0.05%三氟乙酸-乙腈(25∶75),检测波长:210 nm;理论塔板数按6,7-去氢罗伊林酮计算应不低于6 000,按(15S)-12,16-环氧-11,14-二羟基-8,11,13-松香烷-7-酮计算应不低于5 000。结果11批次的测试样品中6,7-去氢罗伊林酮的含量范围在91.5~182.5μg·g^-1,(15S)-12,16-环氧-11,14-二羟基-8,11,13-松香烷-7-酮的含量范围在35.4~84.2μg·g^-1,建议药材中6,7-去氢罗伊林酮和(15S)-12,16-环氧-11,14-二羟基-8,11,13-松香烷-7-酮的含量限度分别不得低于113.4μg·g^-1和52.3μg·g^-1。结论经过系统的方法学考察,所建立的测定方法具有操作简便、稳定、专属、可重复的特点,可用于溪黄草药材及含溪黄草的复方制剂的质量控制。
Objective To establish a method for determination of diterpenoids in different batches of the aerial part of Isodon lophanthoides var. gerardianus. Methods An RP-HPLC method was established for the determination of 6,7-Dehydroroyleanone and (15S) -12,16-Epoxy.11,14-dihydroxy-8,11,13-abietatrien-7-one by using Kromasil RP-C,8 ( 250 mm× 4.6mm, 5μm ) column, with a mixture of 0.05% trifluoro-acetic acid-Acetonitrile (25: 75) as mobile phase at the flow rate of 0. 80 ml·min^-1 and detection wavelength of 210 nm. Results The contents of the above two diterpenoids showed great difference among the 11 patches of tested samples. The content of 6,7-Dehydroroyleanone ranged from 91.5 to 182.5μg·g^-1 and that of ( 15S)-12,16-Ep- oxy-11,14-dihydroxy-8,11,13-abietatrien-7-one ranged from 35.4 to 84.2μg·g^-1. The suggested content limitation of 6,7 - Dehydroroyleanone should be 113.4μg·g^-1, and that of (15S) -12,16-Epoxy - 11,14-dihydroxy-8,11,13-abietatrien-7-one be 52.3 μg·g^-1 in the crude Isodon lophanthoides var. gerardianus. Conclusion The established method has been proved to be simple, stable and repeatable, and can be applied for quality control of the crude Isodon lophanthoides var. gerardianus and compound prescriptions contained crude Isodon lophanthoides var. gerardianus.
出处
《时珍国医国药》
CAS
CSCD
北大核心
2007年第7期1549-1551,共3页
Lishizhen Medicine and Materia Medica Research
基金
国家自然科学基金资助项目(No.30672596)
广东省自然科学基金重点项目(No.036575)