氢化

Turn, calculated the hydrogen bond length in β-turn, and then modelled β-hairpin by the length of short peptide and hydrogen bond pattern was found.

在对β发夹模型化的分析中，同时考虑了连接短肽的长度和氢键模式两个因素。

Ion chromatography method for determining of Hydrogen bromide in air sample was described in this paper.

探讨环境空气中溴化氢的测定。

In this disseration, the cationic ring open-polymerization mechanism of THF、 butylene oxide and ethylene oxide were studied on the basis of electronic microstructures by using quantum chemicl method.

本文选取四氢呋喃、环氧丁烷和环氧乙烷的阳离子开环聚合为研究对象，运用量子化学方法从微观层次上对烷氧基化开环聚合过程进行了较为全面的研究。

Determination of Theobromine and Caffeine in Cocoa Powder and Cacao Shell Tincture by High Performance Liquid Chromatography

性质：N-卤代胺在浓硫酸中加热，消除一分子卤化氢，环化成吡咯烷衍生物。

The results showed that sodium bisulfate monohydrate was a good catalyst for the synthesis of fenofibrate, which would not cauterize the equipment, was friendly to the environment, and could be reused. The yield of fenofibrate was 88.6%.

改进发现一水合硫酸氢钠是一种不腐蚀设备、对环境友好的优良催化剂，酯化率可达88.6 9%，适合工业化生产。

Iso-butyl cinnamate was synthesized by the esterifiestion of iso-butanol with cinnamic acid with the presence of potassium bisulfate monohydrate.

应用硫酸氢钾催化肉桂酸与异丁醇的酯化反应，合成了肉桂酸异丁酯。

Based on the result, the coalification mechanism of

尤其是芳碳率、质子化碳、芳氢率、桥头碳、氧接芳碳、侧支芳碳和脂碳率及芳甲基、脂甲基等，随碳元素的含量、O／C值变化的演化

3 Recently, we reported an efficient tin-free version of this reaction involving thiophenol for the preparation of cyclopentane derivatives through a 1,5-hydrogen transfer/cyclization sequence [Eq.(1); AIBN=azobisisobutyronitrile].

最近，我们报道了高效的、不使用锡试剂而使用苯硫酚的反应，这个反应是通过1，5-氢转移/环化步骤制备环戊烷衍生物的[化学反应式(1)；AIBN=偶氮二异丁腈][4]。

We also discussed this unusual reaction process and proposed a reasonable "one method,two paths" mechanism.These novel iodine-mediated oxidative cycloadditions provide a rapid and efficient route to the preparation of a variety of spiro dihydrofuran and cyclopropane derivatives.

该反应不使用昂贵的催化剂；反应过程中不使用有毒有害的有机溶剂，对环境友好；反应时间短，收率高；在相同条件下得到不同结构的产物，这提供了一种新型的合成二氢呋喃和环丙烷结构的环化反应。

Over the AlPO〓, the deamination and dealkylation of diethylmine and triethylmine produced ethylene selectivily. Over AlPONs of acid-base bifunctional catalysts the ethylnitrol formed selectivily.

二乙胺、三乙胺在酸性的磷酸铝上选择性的脱烷基/脱氨生成乙烯，在酸碱两性的氮化磷酸铝上选择性脱烷基/脱氢生成乙腈。

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。