槲皮苦素

A high-performance liquid chromatographic method for the simultaneous separation and determination of aryltetralin lignans and flavonoids in Podophyllum emodi Wall.var. chinesis Sprague was developed. The separation was performed on a Kromasil-C 18 column by gradient elution with phosphate buffer-methanol (0-13min, 50∶50, 33min, 30∶70) as mobile phase at a flow-rate of 0.8 ml/min, with detection 270nm.

首次建立了桃儿七中苦鬼臼葡萄糖甙、4-去甲基鬼臼脂素、表鬼臼脂素、苦鬼臼脂素、苦鬼臼酯酮、鬼臼脂素、鬼臼酯酮、去氧鬼臼脂素、去氢鬼臼脂素等9种木脂素以及山柰酚、槲皮素等2种黄酮类组分同时分离测定的高效液相方法。

We can supply monomers, such as Rutin,Baicalin,Amygdalin,Ursolic acid,limonin,?Glycyrrhizic acid, Chlorogenic acid, Paeoniflorin, Gardenoside, Paeonol, Apigenin, Naringin, Naringenin, Astragalus P.E., Soybean Isoflavones, Epimedium Extract and so on.

产品主要有单体（含量90%~98%：苦杏仁苷、柠檬苦素、熊果酸、芍药苷、栀子苷、丹皮酚、芦丁、槲皮素、黄芩苷、黄芩素、芹菜素、绿原酸、甘草酸、柚皮苷、柚皮素；标准提取物：山楂总黄酮、葛根总黄酮、黄芪多糖、枸杞多糖、大豆异黄酮等。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。