壮药竹节蓼的质量标准研究Δ
槲皮苷,浸出物,1材料,2方法与结果,3讨论
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 ......
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