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The pigment in colored cotton fibers was extracted by methanol at room temperature. The results of color reactions HCl-Mg reaction, NaBH4 reaction, NaOH reaction, FeCl3 reaction and Pb(Ac2 reaction of the pigment extractive showed that the pigment extracted by methanol was flavone or flavonol with two adjacent hydroxide groups (Table 2, Fig. 1). The results of UV spectral analysis further proved that the pigment extracted by methanol from brown fiber belonged to flavone with two adjacent hydroxide groups in B ring, and that from the green fiber contained not only flavone but also flavonols with two adjacent hydroxide groups both in A ring and B ring and indican replaced a hydroxide group at 3-site of A ring Fig.

通过盐酸－镁粉反应、四氢硼钠还原反应、碱反应、醋酸铅反应、氯化铁反应和紫外光谱吸收的分析表明，甲醇室温提取的棕色棉纤维色素可能是黄酮类化合物，B环上带有邻二酚羟基；甲醇室温提取的绿色棉纤维色素除黄酮类化合物外，还含有3-位羟基被糖甙化的黄酮醇类化合物，A、B环上都带有邻二酚羟基。

In order to overcome the shortage of conformable precision, polyamide affinity membrane modified by cibacron blue F3GA was introduced into the pretreatment unit to get rid of interferer from large molecule such as albumin in serum. The affinity membrane was combined with micro-fluidic chip by embedded and external methods and using external-combination pretreatment unit, average enrichment was 89.36 times, RSD was 4.37%.

为了提高测试的精密度，进而设计含膜复合式预处理芯片，探讨了不同预处理单元对血清样品中痕量盐酸多巴酚丁胺富集效率的影响，优化设计了外接式硅胶整体柱－亲和膜微芯片固相萃取预处理单元，复合式的反相硅胶整体柱对血清中微量盐酸多巴酚丁胺的平均富集倍数提高到89.4，RSD为4.37%。

The following review provides an overview of the pharmacology of phenoxybenzamine, the surgical and physiologic implications of the Norwood procedure, and a discussion of the pros and cons of phenoxybenzamine administration.

在接下来的综述里介绍了酚卞明药理的概述， Norwood 术式的外科和生理过程和赞成使用或反对使用酚卞明的讨论。

Through the study on passivation condition of polyphenol oxidase of vegetable juice,orthogonal design experiment that dissociative pectase degradates the pectinase of vegetable juice and immobilized pectase dealing,draw the conclusion:(1) Polyphenol oxidase will be passivated by heating at 100℃ for 3 min,which prevents the concentrated juice from browning.

本试验通过对蔬菜汁多酚氧化酶的钝化条件的研究，以及游离果胶酶对蔬菜汁果胶降解的正交设计试验和固定化果胶酶处理，得出结论：(1)在100℃下加热3min可使多酚氧化酶钝化，达到防止褐变的要求。

Phenothiazine 100μmol/L decreased about 40% of I〓 tail current elicited by depolarization shorter than 500msec, but only 30% of I〓 tail was inhibited during depolarization longer than 1000msec.

在短于500msec，+60mV的去极化时，100μmol/L酚噻嗪使约40％I〓尾电流下降，而在长于1000msec的相同膜电位水平去极化时，相同浓度的酚噻嗪只能使30％的I〓尾电流受到抑制。

It has been observed that pyrocatechol and m-phenylenediamin can sensitively inhibit the discoloration of neutral red oxidation by the H2O2 and in the presence of catalyzer Fe in dilute sulfuric acid solution but the inhibitory effects of two organic compounds can not be added. Based on this research, the advantages of artificial neural network were adopted to handle the experimental data and a new inhibitory kinetic spectrophotometry of simultaneous determination for pyrocatechol and m-phenylenediamin with artificial neural networks was established.

在硫酸性介质中，Fe能够催化H2O2氧化中性红褪色反应，邻苯二酚和间苯二胺都能阻抑该催化氧化褪色反应的速度，研究发现：两者对Fe催化H2O2氧化中性红褪色反应阻抑作用不具有加和性，根据这一现象，用人工神经网络处理非线性体系的优势进行数据处理，从而建立了一种新的测定邻苯二酚和间苯二胺混合物的人工神经网络阻抑动力学光度法。

Flavone and pyrocatechol were chosento act as model compounds of different structure aspects of flavonoids and theirreactions with α-hydroxyl ethyl peroxyl radical were studied. The rate constants of thereactions of α-hydroxyl ethyl peroxyl radical with flavone and pyrocatechol weredetermined to be 〓 and 〓,respectively.

我们又选择了黄酮体和邻苯二酚作为黄酮类化合物的结构模型，用脉冲辐解的方法研究了它们与α-羟乙基过氧自由基的反应动力学，得到黄酮体和邻苯二酚与α-羟乙基过氧自由基的反应速率分别为〓和〓〓。

The experiment shows lower surface tension and the emulsification of the complex is equivalent to OP-10 on rape oil and better than OP-10 on transformer oil.

结果表明，复配后的体系有较低的表面张力，对菜油的乳化性与烷基酚聚氧乙烯(10)醚相当，对变压器油的乳化性优于烷基酚聚氧乙烯(10)醚。

By using high performance liquid chromatographycombined withthin-layer chromatography,three PG:salicin,salicortin and deltoidin weredetected in the bark of P.deltioides,Five kinds of PG were detected in the leaves,which included trmuloidin and tremulacin besides the three PG.

采用薄层色谱与高效液相色谱法相结合的方法，在实验材料的树皮中测定到三种主要的酚甙类物质：水杨甙、柳皮甙和美洲黑杨甙，在叶片中测定到5种酚甙类物质，除上述3种物质外，还包括2′-苯甲酰水杨甙和颤杨甙，对于后两者在前人的研究中未见报道。研究还对5种化学物质进行了分离。

PCRs were performed on genomic DNAs of four pear cultivars Sand pear, Huangguan pear, Xueli pear, Yali pear using primers derived from sequences of previous published PPO. The target bands were recovered and purified. The fragments were ligated with the plasmid of pGEM-T Vector by the method of direct T-A cloning.

以4种不同来源的梨基因组DNA为模板，根据已经发表的多酚氧化酶基因序列设计引物，利用PCR技术，克隆到了鸭梨、雪花梨、砂梨、黄冠梨约1.8 kb的完整多酚氧化酶基因，将纯化后的扩增产物克隆到质粒pGEM-T vec-tor中，转化DH-5α菌，挑选阳性克隆进行测序。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。