儿茶

Resultsph value and the contents of danshensu,protocatechuic aldehyde and salvianolic acid b had no significant change in compatible solution.

结果丹红注射液与10%氯化钾配伍后24 h内ph值无显著变化，丹红注射液中有效成分丹参素、原儿茶醛和丹酚酸b的含量6 h内基本稳定。

Objective To establish the method of detemtemine for Spatholobus suberectus Dunn.Methods HPLC method was developed for the determination of protocatechuic acid in Spatholobus suberectus Dunn.

HPLC法测定不同产地的鸡血藤中原儿茶酸的含量的学习资料是由论文学习免费网收集整理目的建立鸡血藤的含量测定方法。

In our previous studies, we explored that both protocatechuic acid and the aqueous extract of its original plant, Hibiscus Sabdariffa, showed strong inhibitory effects on the negative charge increasing of protein moiety in oxLDL and on the lipid peroxidation of lipid moiety in oxLDL. At present, we further investigate the effects of PCA and HSE on LDL oxidation.

在先前的研究中，我们已经发现原儿茶酸和洛神花水萃取物对於氧化型LDL所表现的负电荷增加及脂肪酸氧化有抑制氧化的作用，在本实验中我们以PCA和HSE进一步探讨其对抗LDL氧化的作用强弱。

Hibiscus protocatechuic acid, a simple phenolic compound, isolated from Hibiscus sabdariffa L.

原儿茶酸（protocatechuic acid， PCA）是一简单多酚类化合物，经由乾燥的洛神花萃取而来的。

Results Six compounds were isolated and identified as:5α,8α-epidioxy-(22E,24R)-ergosta-6,22-dien-3β-ol,scopoletin,isofraxidin,p-hydroxy benzaldehyde,3,4,5-trimethoxy benzoic acid,protocatechuic acid ethyl ester...

结果得到6个化合物，分别鉴定为：5α，8α表二氧(22E，24R)麦角甾6，22二烯3β醇、东莨菪素、异秦皮啶、对羟基苯甲醛、3，4，5三甲氧基苯甲酸、原儿茶酸乙酯。结论化合物Ⅰ～Ⅵ均为首次从该属植物中分离得到。

Eight phenolic acids in Satsuma mandarin during maturity were determined by high-performance liquid chromatography coupled with photodiode array detector in this study, which were:protocatechuic, p-hydroxybenzoic, vanillic, caffeic, p-coumaric, ferulic, sinapic and chlorogenic.

采用HPLC-PDA测定了不同成熟期温州蜜桔中八种酚酸的含量，即绿原酸、咖啡酸、对香豆酸、阿魏酸、芥子酸、原儿茶酸、对羟基苯甲酸和香草酸。

In Chapter 2, the study on PET of the donor/acceptor pair via the rigid bridge, heptacyclo [6.6.0.02,6.03,13.04,11.05,9.010,14] tetradecane, is presented. By using the GMH method, the electronic coupling matrix elements between ground and excited states are predicted.

在第二章，我们研究了对七环十四烷连接儿茶酚和二氰基乙烯构建的分子内光诱导电子转移体系；考察了吸收光谱随溶剂极性变化的影响，预测了该体系的电子转移机理，并利用广义的Mulliken-Hush公式，计算了基态和各激发态之间的电子转移耦合矩阵元。

METHODS: The maximum number of platelet binding sites and their affinity for [3H]-rauwolscine, a selectie alpha 2-AR antagonist, were measured in unmedicated and medicated major depressed patients and in normal olunteers.

背景：曾认为抑郁症可以伴随中枢α2肾上腺素受体密度的降低，继发突触前儿茶酚胺神经元负性反馈的损害，导致刺激后去甲肾上腺素输出和释放去抑制功能的减弱。

The major bioactive components in a Chinese herb named Polygonum perfoliatum L. including ferulic acid, vanillic acid, quercetin, caffeic acid and protocatechuic acid were simultaneously determined by capillary electrophoresis with electrochemical detection in this paper.

采用毛细管电泳-电化学检测法同时分离测定了中药杠板归中的阿魏酸、香草酸、槲皮素、咖啡酸、原儿茶酸等主要生物活性成分的含量。

The qualitative and quantitative analysis of schizophrenia and single nucleotide polymorphism of catechol-O-methyltransferase , Proline Dehydrogenase and DYSBINDIN genes were done by using transmission disequilibrium test . Results:(1) The symptoms of first-episode schizophrenia were divided into four independent symptom dimensions: psychomotor poverty, reality distortion, disorganisation and depression-anxiety.

4采用传递不平衡检验、单倍型传递不平衡检验和定量性状传递不平衡检验的方法对6号、22号染色体上3个候选基因，即儿茶酚氧位甲基转移酶(catechol-O-methyltransferase，COMT)、脯氨酸脱氢酶(Proline Dehydrogenase，PRODH)和DYSBINDIN基因的9个单核苷酸多态性(single nucleotide polymorphism，SNP)位点与精神分裂症、神经认知功能、人格特质和临床症状表现的关系进行了定性和定量的遗传学分析。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷