氧化还原

Constituting dicycle; 2. region selectively reducing six-membered ring ketocarbonyl radical; 3. introducing 7alpha-hydroxy group; 4. Aldol reaction to introduce side chain and obtain 8alpha-hydroxy group; 5. oxidizing the position 7 hydroxy group into ketone; 6. turning the configuration of the position 7 hydroxy group; 7. glycosidating the position 7 hydroxy group; and 8. eliminating protecting group to obtain the target compound.

该方法包括如下步骤：(1)双环的构建；(2)区域选择性还原六元环酮羰基；(3)7α-羟基的引入；(4)Aldol反应引入侧链，同时得到8α-羟基；(5)7位羟基氧化为酮；(6)7位羟基构型的翻转；(7)7位羟基的糖苷化；(8)脱除保护基得到目标化合物。

A simple method to fabricate lead oxide nanorods by an electrochemical reduction was reported.

本文介绍一种用电化学还原法制备氧化铅纳米棒的简单方法。

The whole experiment process was divided into three parts - reduction roasting pyrite cinder, vitriol lixiviation and catalytic-oxidation polymerization, the optimum condition was defined in every part, and the production quality and flocculation performance were tested, good results were gained.

本实验采用还原焙烧、硫酸浸取、催化氧化聚合的工艺制取聚合硫酸铁，确定了各个阶段的最佳工艺条件，并对制取的PFS进行了产品质量检验和水处理效果实验，取得了良好效果。

MSH can cause in the melanophore the tyrosine words enhancement, causes the tyrosine the copper thing to turn the Asian copper thing, strengthens the epidermal cell to embezzle the melanin pellet, and urges the melanin pellet under the ultraviolet radiation to turn the state of oxidation from the return to original state condition, causes the skin pigmentation.

MSH能使黑色素细胞内酪氨酸话性增强，使酪氨酸的铜化物变成亚铜化物，加强表皮细胞吞没黑色素颗粒，并在紫外线照射下促使黑色素颗粒从还原状态变成氧化状态，导致皮肤色素沉着。

From depth to shallow metallogenetic hydrothermal and organic matter was transformed from reduction to oxidation relative.

从深部到上部成矿热液及热液中的有机物由相对还原向相对氧化方向转化。

METHODS: The oxidative damages of erythrocyte induced by CSE were evaluated through biochemical assays of malonaldehyde, methemoglobin and reduced glutathione levels, hemolytic rate, SDSPAGE of membrane proteins and chromatographic analysis of membrane phospholipids.

以市售香烟提取CSE，然后作用于红细胞，通过测定细胞溶血率、膜脂质过氧化水平、细胞内高铁血红蛋白以及还原谷胱甘肽含量、膜磷脂组成和膜蛋白谱变化等指标，对CSE导致的红细胞膜损害进行评估。

The results showed that the redox peak potential difference of metol on IL/CPE was smaller than that on the bare CPE, while peak current was significantly increased, which indicated that IL/CPE had electrocatalytic activity toward the redox of metol.

研究表明，米吐尔在IL/CPE上的氧化、还原峰电位差比其在裸碳糊电极上的小，而峰电流却显著增加，说明IL/CPE对米吐尔有电催化作用；共存物对苯二酚干扰米吐尔的测定，通过方波伏安法可以消除其干扰。

It could be explained by the fact that heat treatment could liberate some bonded antioxidants and facilitate Milliard reaction that produces reductive products.

推测由於加热处理释放一些原本结合态的抗氧化活性物质或促进梅纳反应产生还原性产物。

Industry often molybdenite ore melting molybdenum trioxide after the addition of sulfur at high temperature hydrogen and then reduced to pure molybdenum.

工业上经常用辉钼矿石熔烧除硫后的三氧化钼再在高温下用氢还原成纯钼。

Bi-2; 2′-naphthol ; enantiomer resolution ; asymmetric synthesis ; asymmetric oxidation reaction ; asymmetric reduction reaction

1； 1′-联二萘酚；对映体拆分；不对称合成；不对称氧化反应；不对称还原反应

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。