化合物结构中羰基的存在似有利于化合物在正离子模式下形成准分子离子或其它分子加和离子。
The existence of carbonyl group in structure seems to be a factor that favors the formation of quasi-molecular ion (QMI) or other adduct molecular ion (OAMI) in positive mode.
结果表明,预处理过程中愈创木基易于磺化和溶出,木素中有新的共轭羰基和醌型结构产生。
The results showed that during the chemical pretreatment the guaiacyl unit was more readily to be sulfonated and dissolved, and there were new conjugated carbonyl and quinoid structure formed.
本文总结了六种钼—铁混合金属羰基原子簇化合物的合成、结构类型和电子计数。
We discuss the syntheses, structural pattern and electron counting of six molybdenum-iron mixed metal carbonyl clusters.
对天然彩色棉纤维结构的初步分析发现,天然色彩存在于纤维次生胞壁内,发色基团与羰基有关。
On the basis of structure analysis of colored cotton, it is found that natural color is existed in the secondary cell wall and color group is in line with carbonyl.
对配体进行量化计算的结果表明,羰基氧、羟基氧是可能的配位原子,与结构推测结果相吻合。
The results of the quantum chemistry calculation of the ligand indicate that the carbonyl and hydroxyl oxygen atoms maybe coordinate to the metal atom, which is consistent with the conjecture by IR.
一般情况下,馏分的相对分子质量越大、稠环芳香结构和羰基含量越高,则乳状液越稳定。
Generally, the heavier the relative molecular mass, the higher the content of aromatic structure or the higher the content of carbonyl group, the more stable the emulsion is.
由于这种聚合物分子含有疏水骨架、羰基和胺基的有序 分布,以及独特的纳料微观颗粒和孔穴结构,使其成为吸附法固定化酶的良好载 体。
Owing to its aromatic backbone, amino and carbonyl groups, and its characteristic in nano-size surface structure, the polymer can be used as an ideal support for immobilized enzymes by absorption.
红外光谱分析说明,弱酸性精油中含有酚的结构,中性精油中含有较多的非共轭羰基结构。
The FT-IR indicates that the phenolic group in the weak acid oil subsection and carbonyl group exist in the neutral oil subsection.
红外光谱分析说明,弱酸性精油中含有酚的结构,中性精油中含有较多的非共轭羰基结构。
The FT-IR indicates that the phenolic group in the weak acid oil subsection and carbonyl group exist in the neutral oil subsection.
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