查询词典 quercitrin

A microcolumn high performance liquid chromatography method for the determination of polyphenols (chlorogenic acid, quercitrin 3 glucoside, luteolin 7 glucoside, luteolin 7 galactoside, quercitrin , luteolin) in honeysuckle flower was studied.

研究了用微柱高效液相色谱法测定金银花中的几种多酚类物质(氯原酸、木犀草黄素、木犀草黄素 7 葡萄糖甙、木犀草黄素 7 半乳糖甙、槲皮素及槲皮素 3 葡萄糖甙)的方法。

After being purified by the B-8 resin, the contents of the total flavonoids and quercitrin were raised 2.48 times and 3.29 times more than those before purification respectively.

总黄酮与槲皮苷的保留率达70%、95%以上，峰1~3的保留率达90%以上，纯化后总黄酮及槲皮苷的含量分别提高了2.48倍和3.29倍。

Results Eleven compounds were isolated and identified as:quercetin(1),kaempferol(2),quercitrin(3),protocatechuic acid(4),gallic acid(5),protocatechuic acid ethyl ester(6),ethyl gallate(7),vanillic acid(8),1,5,7-trihydroxyl-3methylan...

结果得到11个化合物，分别鉴定为：槲皮素(1)、山柰酚(2)、槲皮苷(3)、原儿茶酸(4)、没食子酸(5)、原儿茶酸乙酯(6)、没食子酸乙酯(7)、香草酸(8)、1，5，7-三羟基-3-甲基蒽醌(9)、琥珀酸(10)、5-羟甲基糠醛(11)。结论化合物6、7、9、11为首次从该属植物中分离得到。

With the increase of microwave extraction time,extraction yields of rutin,epicatechin,quercitrin and quercetin were firstly increased and then decreased.

在提取压力超过400kPa时，芦丁开始失去一个芸香糖转化为槲皮素；随着微波照射时间的延长，芦丁、表儿茶素和槲皮素提取产率先增加，而后下降。

Objective To develop an RP-HPLC method for the simultaneous determination of the contents of protocatechuic acid, rutin, hyperoside and quercitrin in Bidens parviflora Willd..

目的 建立同时测定小花鬼针草中原儿茶酸、芦丁、金丝桃苷和槲皮苷含量的方法。

Result: The TLC sports developed was fairly clear, the HPLC method showed good repeatability , and the average recovery of quercitrin was 100.7% with RSD 2.0%.

结果 ：薄层斑点清晰，重现性好，含量测定平均回收率为 10 0 。7%，RSD为 2 。0 %。

Results: The TLC spots were fairly clear, the HPLC method showed good repeatability , and the average recovery of quercitrin was 96.90%, RSD=1.37%.

结果：薄层斑点清淅，重现性好，含量测定平均回收率为96.90%，RSD为1.37%。

Methods Spectrophotometric method was used to detect the total flavonoids, and HPLC was used to determine quercitrin and analyze the characteristic peaks of Fingerprint.

以总黄酮、槲皮苷含量结合指纹图谱主要特征峰面积保留率为考察指标；采用可见分光光度法测定总黄酮含量，HPLC法测定槲皮苷含量，HPLC法分析指纹图谱主要特征峰面积。

This method is highly sensitive and highly selective and was can be applied to the rutin、quercitrin、quercitrin-3-O-giucoside and quercitrin-3-O-galactose determination in yacon leaves with satisfactory result and also can be used to determine these flavonoids in Chinese herbal medicine and Chinese herbal and crude drugs preparations containing flavonoids.

该方法也可用于含芦丁型黄酮中草药及其制剂中芦丁、槲皮素、槲皮素-3-O-葡萄糖苷和槲皮素-3-O-半乳糖苷的检测。

On a ZORBAX Stable Bound (2.150 mm, 1.8 m), the rutin、quercitrin、quercitrin-3-O-giucoside and quercitrin-3-O-galactose could be separated completely with 0.05 mol/L potassium dihydrogen phosphate and methanol as mobile phase (40:60,V/V) at a flow rate of 0.3 ml/min and detected with a photodiode array detector .

在色谱柱为ZORBAX Stable Bound (2.150 mm， 1.8 m)，流动相为0.05 mol/L的磷酸二氢钾缓冲溶液-甲醇(40：60，V/V)，流速为0.3 ml/min，在检测波长为360 nm的色谱条件下，芦丁、槲皮素、槲皮素-3-O-葡萄糖苷和槲皮素-3-O-半乳糖苷分离效果好，方法灵敏度高，重现性好，用于测定雪莲果叶中的上述几种黄酮芦丁型黄酮，效果满意。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。