查询词典 quercetin

Compared to quercetin, rutin was more likely to be absorbed into intestinal capillaries than into lacteal ducts. This result corresponded with the higher hydrophilicity of rutin than quercetin.

与槲黄素相较，芸香素更倾向由小肠绒毛内微血管所吸收与运输，这个结果与芸香素有较高的亲水性是相符合的。

Objective: To develop a HPLC method for the determination of quercetin in Quercetin capsule .

目的 ：建立反相高效液相色谱法检测槲皮素胶囊中槲皮素含量方法。

The oxidation mechanism of synephrine was also investigated;(2) The electrochemical behavior of twelve flavonoids (quercetin, morin, fisetin, luteolin, isorhamnetin, myricetin, hyperoside, quercitrin, puerarin, farrerol, naringenin and hesperidin) was investigated. The method for the determination of flavonoids was developed by using different pulse voltammetry, and the detection limit was in the range of 10-7~10-9 mol/L. This method has been successfully employed to determine the total amount of flavonoids in pericarpium citri reticulatae and quercetin in the spiked human blood plasma samples.

2研究了槲皮素、桑色素、漆黄素、木犀草素、异鼠李素、杨梅素、金丝桃甙、槲皮甙、葛根素、杜鹃素、柚皮甙元和橙皮甙等12种黄酮类化合物在玻碳电极上的电化学氧化行为，建立了测定黄酮类化合物的微分脉冲伏安法，检测限可达10~(-7)～10~(-9) mol/L，并用DPV法测定了陈皮中总黄酮含量和模拟血清中的槲皮素，结果较为满意。

As antioxidants, the vitamin E or quercetin (10μg/mL) significantly attenuated the toxic effects of PCBs on the cultured hepatocytes. The above results indicated that vitamin E or quercetin might antagonize the toxic effect of PCBs via antioxidizing effects on in vitro cultured chicken embryo hepatocytes.

结果表明离体培养的鸡胚肝细胞可作为肝损伤的细胞模型，PCB对培养的肝细胞的损伤及抗氧化剂维生素E和槲皮素对它的缓解作用提示， PCB对肝细胞的损伤可能是通过诱导细胞膜发生脂质过氧化而导致细胞的死亡。

On the basis of spectral analysis, these compounds were identified as Kaempferol , Kaempferol-3-O-β-D-glucopyranoside , Kaempferol-3-O-β-D-galactopyranoside, Quercetin , Quercetin-3-O-β-D-arabinopyranoside, Quercetin-3-O-β-D-galactopyranoside, gallic acid, methyl gallate-4-O-β-D- galactopyranoside, caffeicacid, methyl caffeate, 4-cafeoyl-(3"a, 4"a, 5"β)- trihydroxyquinic acid, 3"-cafeoyl-(3"a, 4"P, 5"P )-trihydroxyquinic acid methyl ester, 5"-cafeoyl-galactonic acid , pumiloside, loganic acid , 5R,6S,7E-megastima-3-on-7-en-9-ol 9-O-β-D-glucopyranoside. 2a, 3β-dihydroxy-oleanoic acid , 2a, 3β, 23-trihydroxy-oleanoic acid, 3a, 6a-dihydroxy-oleanoic acid, 3β-hydroxy-ursoic acid, 2a, 3a, 23-trihydroxy-ursoic acid , 2a, 3β, 23-trihydroxy-ursoic acid, 2β, 3β, 19a -trihydroxy-ursoic acid, 2a , 3β, 19a -trihydroxy-ursoic acid-28-O-β-D-glucopyranoside , 2a. 3a, 19a-trihydroxy-ursoic acid-28-O-β-D-glucopyranoside, 2a, 3a, 19a, 23-tetrahydroxy-ursoic acid, 1a, 3a, 19a, 23-tetrahydroxy-ursoic acid-28-O-β-D-glucopyranoside , 3a, 19a, 23-trihydroxy-ursoic acid.

从珙桐中分离鉴定得到了28种化合物，它们分别是：山奈酚，3-O-β-D-吡喃葡萄糖基-山奈酚甙，3-O-β-D-吡喃半乳糖基-山奈酚甙，槲皮素，3-O-β-D-吡喃阿拉伯糖基-槲皮素甙，3-O-β-D-吡喃半乳糖基-槲皮素甙，没食子酸，4-O-β-D-吡喃半乳糖基-没食子酸甲酯，咖啡酸，咖啡酸甲酯，4-咖啡酰基-(3&α，4&α，5&β)-三羟基鸡纳酸，4-咖啡酰基-(3&α，4&β，5&β)-三羟基鸡纳酸甲酯，5'-咖啡酰基-半乳糖酸，pumiloside，loganic acid，5R，6S，7E-megastima-3-on-7-en-9-ol9-O-β-D-glucopyranoside，2α，3β-二羟基齐墩果酸，2α，3β，23-三羟基齐墩果酸，3α，6α-二羟基齐墩果酸，3β-羟基熊果酸，2α，3α，23-三羟基熊果酸，2α，3β，23-三羟基熊果酸，2β，3β，19α-三羟基熊果酸，2β，3β，19α-三羟基熊果酸-28-O-β-D-吡喃葡萄糖甙，2α，3α，19α-三羟基熊果酸-28-O-β-D-吡喃葡萄糖基甙，2α，3α，19α，23-四羟基熊果酸，2α，3α，19α，23-四羟基熊果酸-28-O-β-D-吡喃葡萄糖基甙，3α，19α，23-三羟基熊果酸。

A determination method was established for quercetin and kaempferol by HPLC. The contents of quercetin and kaemprol in Chenopodium ambrosioides L.

采用HPLC建立了槲皮素和山柰素的含量测定方法，土荆芥中槲皮素和山柰素的平均含量分别为0.25mg/g和1.03mg/g。

Twoanthocyanins ( cyanidin 32O 2glucoside and cyanidin 32O2rutinoside) and three flavonols ( quercetin 32O 2rutino2side, kaempferol 32O 2rutinoside and quercetin aglycone) were detected in the red inner perianths.

在蜡梅红色内瓣中检测到2种花青苷和3种黄酮醇，在黄色外瓣中检测到与红色内瓣相同的3种黄酮醇。

Quercetin is one of the effective components contained in sophora japonica flower bud.3-hydroxy 4-carbonyl,4-carbonyl 5-hydroxy,and 3′,4′-dihydroxy groups of quercetin could be become chelating position with metal.

槲皮素（3，5，7，3′，4′－五羟基黄酮）是中药槐花蕾的有效成分之一。槲皮素的3－羟基4－酮基，5－羟基4－酮基及3′，4′－二羟基均为可络合部位。

There were no significant differences in contents of quercetin, isoquercitrin and kaempferol in the fronds, and also no significant differences in contents of rutin, quercetin, kaempferol and total flavonoids in the roots of the three plants studied under the same As treatment.

结果表明：在相同As浓度处理条件下，叶片中槲皮素、异槲皮甙和山奈酚的含量不存在显著差；根部芸香苷、槲皮素、山奈酚和总黄酮含量也不存在显著差异。

The theoretical plate numbers of kaempferol and quercetin were 5 121 and 6 673, the resolution between kaempferol, quercetin and impurities were 1.96 and 5.32, respectively.

该方法精密度、重现性和分离效果好，分析快速准确，适合于该药材及提取物中山柰酚和槲皮素含量的测定，不同产地两成分均存在一定的差别。

No clear conclusions can be made about the predictie alidity of specific measures, they found, except for criteria for the underuse of drugs for cardioascular disease.

除了心血管病不合理用药标准外，对于特定评价方法的预测效度没有明确的结论。

The third and last is that almost all of them, being infinite in number, have been impostures, and by idle and crafty brains merely contrived and feigned after the event past.

第三、即最后一点是：几乎所有这些不胜枚举的预言都是欺人之谈，都是在事件过后由无聊而狡猾的脑筋推测与凭空捏造的。