目的对穿心莲药材的有效成分进行定性定量鉴别,对水分、总灰分、酸不溶性灰分、浸出物及重金属含量进行定量测定,进一步完善穿心莲药材的质量标准。方法采用薄层色谱法对穿心莲中的穿心莲内酯和脱水穿心莲内酯进行定性鉴别,高效液相色谱法进行定量测定,常规检查项目按2010年版《中华人民共和国药典》(一部)附录ⅨA杂质检查法、ⅨH水分测定法中的烘干法、附录ⅨK灰分测定法、附录ⅩA浸出物测定法及ⅨE重金属检查法测定。结果 10批穿心莲样品中穿心莲内酯和脱水穿心莲内酯及醇溶性浸出物含量均符合我国药典规定的标准。结论所建立的方法简便、准确,能作为质量标准以控制穿心莲药材的质量。
Objective To improve the quality standard of Andrographis Herba through determination of effective components, moisture, total ashes, acid insoluble ashes, extracts and heavy metals. Methods TLC and HPLC were used for qualitative and quantitative identification of andrographolide and dehydroandrograpolide in Andrographis Herba. Routine examinations were based on the procedures recorded in the Appendix Ⅸ A, Ⅸ H, Ⅸ K, ⅩA and Ⅸ E of Chinese Pharmacopoeia (2010), for foreign matter, moisture, ashes, extracts determination and heavy metal test respectively. Results Total content of andrographolide and dehydroandrographolide, extractives (70% ethanol) all complied with Chinese pharmacopoeia. Conclusion The established method was simple, accurate and can be used as the quality standard for the quality control of Andrographis Herba.