目的:用高效液相法同时测定山楂叶中牡荆素-4〃-O-葡萄糖苷、牡荆素鼠李糖苷、牡荆素、芦丁、金丝桃苷的含量。方法:采用HPLC法,色谱柱:Sepax HP C18柱(4.6 mm×250mm,5μm);流动相:A为乙腈-四氢呋喃(20:1),B为0.5%甲酸溶液,采用梯...目的:用高效液相法同时测定山楂叶中牡荆素-4〃-O-葡萄糖苷、牡荆素鼠李糖苷、牡荆素、芦丁、金丝桃苷的含量。方法:采用HPLC法,色谱柱:Sepax HP C18柱(4.6 mm×250mm,5μm);流动相:A为乙腈-四氢呋喃(20:1),B为0.5%甲酸溶液,采用梯度洗脱;0～10min,A为14%～17%;10～26min,A为17%～18%;26～28min,A为18%～14%;检测波长:360nm,流速:1.0mL/min;柱温:32℃。结果:该方法加样回收率牡荆素-4″-O-葡萄糖苷:99.59%(RSD=0.50%),牡荆素鼠李糖苷:99.57%(RSD=0.96%),牡荆素:98.70%(RSD=1.10%),芦丁:99.35%(RSD=1.16%),金丝桃苷:99.28%(RSD=0.88%)。结论:该方法准确可靠,重现性好,可用于山楂叶的质量控制。展开更多
Pueraria lobata ( Wild. ) Ohwi ( Ye-Ge in Chinese ) is a perennial herb ofthe genus Pueraria, which belongs to the Leguminosae family. It is commonly employed to relievefever and dysentery, promote the production of b...Pueraria lobata ( Wild. ) Ohwi ( Ye-Ge in Chinese ) is a perennial herb ofthe genus Pueraria, which belongs to the Leguminosae family. It is commonly employed to relievefever and dysentery, promote the production of body fluid, reduce stiffness and pain of the nape,and for the treatment of cardiovascular diseases, e. g. hypertension, myocardial infarction, andarrhythmia. Previous phytochemical studies on P. lobata reported a number of bioactive isoflavones,e. g. daidzein, daidzin, and puerarin. Further investigation of its root has led to isolation offourteen compounds and their structures were identified as daidzein, ononin, daidzin, 3'' -methoxypuerarin, puerarin, pueroside B, daidzein-8-C-apiosyl- (1-6)-glucoside, 3''-hydroxy-puerarin,puerarinxyloside, daidzein-7, 4'' -O-glucoside, puerarin-4''-O-glucoside, mirificin-4''-O-glucoside,sissotorin, and pueroside C. Compounds 11 and 13 were isolated from the root of P. lobata for thefirst time.展开更多
目的：建立HPLC同时测定益心酮片中牡荆素-4＂-O-葡萄糖苷、牡荆素鼠李糖苷、牡荆素、芦丁、金丝桃苷的含量。方法：采用HPLC法，色谱柱为Sepax HP C18柱（4．6 mm×250mm，5μm）；流动相：A为乙腈-四氢呋喃（20：1），B为0．5％...目的：建立HPLC同时测定益心酮片中牡荆素-4＂-O-葡萄糖苷、牡荆素鼠李糖苷、牡荆素、芦丁、金丝桃苷的含量。方法：采用HPLC法，色谱柱为Sepax HP C18柱（4．6 mm×250mm，5μm）；流动相：A为乙腈-四氢呋喃（20：1），B为0．5％甲酸溶液，采用梯度洗脱；0～10min，A为14％～17％，B为86％～83％；10—26min，A为17％～18％，B为83％～82％；26～28min，A为18％-14％．B为82％～86％；检测波长360nm，流速1．0mL·min；柱温32℃。结果：该方法加样回收率牡荆素-4＂-O-葡萄糖苷为99．61％（RSD=0．64％），牡荆素鼠李糖苷为99．30％（RSD=0．49％），牡荆素为98．97％（RSD=1．03％），芦丁为99．45％（RSD=0．85％）．金丝桃苷为99．27％（RSD=0．96％）。结论：该方法准确可靠，重现性好，可用于益心酮片的质量控制。展开更多
A new flavonoidic glycoside,tricin-4’-O-β-L-arabinoside(1) was isolated from the leaves of Alstonia macrophylla along with two known flavonoids,vitexin and myricetin-3′-rhamnoside-3-O-galactoside.Their structures w...A new flavonoidic glycoside,tricin-4’-O-β-L-arabinoside(1) was isolated from the leaves of Alstonia macrophylla along with two known flavonoids,vitexin and myricetin-3′-rhamnoside-3-O-galactoside.Their structures were established by chemical and spectral evidences.The known compounds were reported for the first time from this plant.Moreover compound 1 was tested for antifungal and antibacterial activities.展开更多
文摘目的:用高效液相法同时测定山楂叶中牡荆素-4〃-O-葡萄糖苷、牡荆素鼠李糖苷、牡荆素、芦丁、金丝桃苷的含量。方法:采用HPLC法,色谱柱:Sepax HP C18柱(4.6 mm×250mm,5μm);流动相:A为乙腈-四氢呋喃(20:1),B为0.5%甲酸溶液,采用梯度洗脱;0～10min,A为14%～17%;10～26min,A为17%～18%;26～28min,A为18%～14%;检测波长:360nm,流速:1.0mL/min;柱温:32℃。结果:该方法加样回收率牡荆素-4″-O-葡萄糖苷:99.59%(RSD=0.50%),牡荆素鼠李糖苷:99.57%(RSD=0.96%),牡荆素:98.70%(RSD=1.10%),芦丁:99.35%(RSD=1.16%),金丝桃苷:99.28%(RSD=0.88%)。结论:该方法准确可靠,重现性好,可用于山楂叶的质量控制。
文摘Pueraria lobata ( Wild. ) Ohwi ( Ye-Ge in Chinese ) is a perennial herb ofthe genus Pueraria, which belongs to the Leguminosae family. It is commonly employed to relievefever and dysentery, promote the production of body fluid, reduce stiffness and pain of the nape,and for the treatment of cardiovascular diseases, e. g. hypertension, myocardial infarction, andarrhythmia. Previous phytochemical studies on P. lobata reported a number of bioactive isoflavones,e. g. daidzein, daidzin, and puerarin. Further investigation of its root has led to isolation offourteen compounds and their structures were identified as daidzein, ononin, daidzin, 3'' -methoxypuerarin, puerarin, pueroside B, daidzein-8-C-apiosyl- (1-6)-glucoside, 3''-hydroxy-puerarin,puerarinxyloside, daidzein-7, 4'' -O-glucoside, puerarin-4''-O-glucoside, mirificin-4''-O-glucoside,sissotorin, and pueroside C. Compounds 11 and 13 were isolated from the root of P. lobata for thefirst time.
文摘目的：建立HPLC同时测定益心酮片中牡荆素-4＂-O-葡萄糖苷、牡荆素鼠李糖苷、牡荆素、芦丁、金丝桃苷的含量。方法：采用HPLC法，色谱柱为Sepax HP C18柱（4．6 mm×250mm，5μm）；流动相：A为乙腈-四氢呋喃（20：1），B为0．5％甲酸溶液，采用梯度洗脱；0～10min，A为14％～17％，B为86％～83％；10—26min，A为17％～18％，B为83％～82％；26～28min，A为18％-14％．B为82％～86％；检测波长360nm，流速1．0mL·min；柱温32℃。结果：该方法加样回收率牡荆素-4＂-O-葡萄糖苷为99．61％（RSD=0．64％），牡荆素鼠李糖苷为99．30％（RSD=0．49％），牡荆素为98．97％（RSD=1．03％），芦丁为99．45％（RSD=0．85％）．金丝桃苷为99．27％（RSD=0．96％）。结论：该方法准确可靠，重现性好，可用于益心酮片的质量控制。
文摘A new flavonoidic glycoside,tricin-4’-O-β-L-arabinoside(1) was isolated from the leaves of Alstonia macrophylla along with two known flavonoids,vitexin and myricetin-3′-rhamnoside-3-O-galactoside.Their structures were established by chemical and spectral evidences.The known compounds were reported for the first time from this plant.Moreover compound 1 was tested for antifungal and antibacterial activities.
