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壳聚糖辐照后并未发现有羰基形成。No evidence for carbonyl formation was observed.

摘要对羰基合成反应的温度进行了研究。The temperature of carbonyl synthesis reaction is studied.

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但是，迄今为止，所应用的保护试剂大多为硫醇。The reagents of protecting carbonyl groups mostly are thiols.

重点在担载金属羰基簇。An emphasis is given to the supported metal carbonyl clusters.

烷基自由基对羰基进行进攻，生成双环的羰自由基中间体。This radical attacks the carbonyl group to an intermediate bicyclic ketyl.

羰基在一般条件下不易被化学还原剂还原。The chemical reductants fail to reduce carbonyl group under ambient conditions.

对几种酵母细胞催化双烯和羰基的加氢反应作了一些初步研究。The hydrogenation of diene compound and carbonyl group with yeasts was studied.

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五羰基铁浓度对复合粒子的静磁性能影响不明显。Influence of concentration of carbonyl iron on static magnetism was not obvious.

用化学镀法，甲醛为还原剂，制备镀银羰基铁粉。Silver-coated carbonyl iron powder was prepared by using electroless plating method.

羰基镍粉可形成受控制的高空隙烧结电极。T255 type carbonyl nickel powder can form controllable high-rate gap baking electrode.

采用光气与对氯苯胺合成对氯苯基异氰酸酯。The p-chlorophenyl isocyanate is synthesised by carbonyl chloride and p-chloroaniline.

这个一氧化碳合成方法也可以制备任何一个旋光对映体。This approach to carbonyl compounds also allows the synthesis of either optical antipodes.

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以生产400吨亚氨基二苄甲酰氯为基准进行物料衡算。Complete the mass balance based on the produce of 400 ton I minodibenzyl carbonyl chloride.

研究含硝基及羰基之分子及其衍生物之光化学。The photochemistry of compounds containing both nitro and carbonyl groups and their derivatives.

甲酸甲酯作为新的碳源，在羰基合成化学中的作用越来越受到重视。Methyl formate becomes more and more important as a new source of carbon in the carbonyl synthesis.

挥发性羰基化合物是卷烟主流烟气中主要有害成分之一。The volatile carbonyl compounds are one of most poisonous components in cigarette mainstream smoke.

研究了无机盐促进的羰基烯丙基化反应。Inorganic salts were found to promote the allylation reaction of carbonyl compounds with allyl bromide.

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在经历25分钟和40分钟的WIT后，灌注期间出现明显的血浆羧基水平的升高。A significant increase in plasma carbonyl levels during perfusion was seen after 25 and 40 min WIT only.

分子中具有红外活性的两个原子间的振动频率与化学键的力常数及折合质量有关。The vibrant frequency of carbonyl is concerned with the force constant and convert mass of the carbonyl.

以邻二甲苯和甲醇为原料时，可获得高纯度的副产品氢气。When using o-xylene carbonyl and methanol, the by-product hydrogen gas with high purity can be obtained.