曾祥燕,唐玉荣,颜萍花,黎 理(广西中医药大学药学院,南宁 530001)
壮药竹节蓼的质量标准研究Δ
曾祥燕*,唐玉荣,颜萍花,黎 理#(广西中医药大学药学院,南宁 530001)
目的:建立壮药竹节蓼的质量标准。方法:采用薄层色谱法(TLC)对药材样品进行定性鉴别;采用高效液相色谱法对药材样品中槲皮苷进行含量测定:色谱柱为Agilent Zorbax SB-C18,流动相为乙腈-0.1%冰醋酸溶液(20∶80,V/V),流速为1.0 mL/min,检测波长为360 nm,柱温为30℃,进样量为10 μL;参照2015年版《中国药典》测定药材样品水分、灰分和浸出物的含量。结果:竹节蓼药材的TLC图斑点清晰,分离度好。槲皮苷检测质量浓度线性范围为0.023~0.46 mg/mL(r=0.999 1);精密度、稳定性、重复性试验的RSD<2.0%;加样回收率为98.01%~103.05%(RSD=1.71%,n=6)。药材样品水分、总灰分、酸不溶性灰分、浸出物和槲皮苷含量分别为6.39%~9.78%、2.82%~8.07%、0.02%~0.27%、14.14%~28.45%、0.09%~0.50%。结论:该研究所建标准可用于壮药竹节蓼的质量控制。
壮药;竹节蓼;槲皮苷;定性;定量;薄层色谱法;高效液相色谱法
ABSTRACTOBJECTIVE:To establish quality standard for Zhuang medicine Homalocladium platycladum.METHODS:TLC method was used for qualitative identification.HPLC method was used to determine the content of quercetrin in samples:Agilent Zorbax SB-C18column,mobile phase consisted of acetonitrile-0.1%acetic acid(20∶80,V/V),flow rate of 1.0 mL/min,detection wavelength of 360 nm,column temperature of 30℃,injection volume of 10 μL.The contents of moisture,total ash and extract in samples were determined.referring to Chinese Pharmacopiea(2015 edition).RESULTS:TLC spots of H.platycladum were clear and well-separated without interference from negative control.The linear range of quercetin were 0.023-0.46 mg/mL(r=0.999 1). RSDs of precision,stability and repeatability tests were all lower than 2.0%.The average recoveries were 98.01%-103.05%(RSD=1.71%,n=6).The contents of moisture,total ash,extract and quercetrin in samples were 6.39%-9.78%,2.82%-8.07%,0.02%-0.27%,14.14%-28.45%,0.09%-0.50%respectively.CONCLUSIONS:Established trial can be used for quality control of Zhuang medicine H.platycladum.
KEYWORDSZhuang medicine;Homalocladium platycladum;Quercetrin;Qualitative;Quantitative;TLC;HPLC
竹节蓼为蓼科植物竹节蓼Homalocladium platycladum(F.Muell.ex Hook.)L.H.Bailey的全草[1],又名观音竹、飞天蜈蚣、扁竹等,味甘、淡,性平,归肝、肺经,具有清热解毒、祛瘀消肿的功效,主治痈疮肿毒、跌打损伤等症,在民间常作为草方用于治疗肿瘤,效果显著[2-3],但其化学成分研究未见报道。本课题组前期研究发现竹节蓼中含有金丝桃苷和槲皮苷等黄酮类化合物。而研究表明,槲皮苷和金丝桃苷具有抗肿瘤、抗炎、抗菌等作用,与竹节蓼功效主治具有一定相关性[4-7]。笔者采用薄层色谱法(TLC)和高效液相色谱法(HPLC)[8-10]对竹节蓼药材中槲皮苷进行定性定量分析,并对其水分、灰分及浸出物含量进行测定,以期为其质量控制提供科学依据。……