查询词典 dibasic carboxylic acid

Result 5 compounds in Hickory nut oil were identified, and they were linoleic acid, oleic acid, linolenic acid, palmitic acid and stearic acid, and their contents were 63.48%, 19.90%, 11.96%, 3.31% and 1.35% resp. The fatty acid ratio of n-6 to n-3 was 5.31, which was close to that of recommended by China (4-5):1. The ratio of saturated fatty acid, monounsaturated fatty acidand polyunsaturated fatty acids in Hickory nut oil was 1:4.3:16, the content of polyunsaturated fatty acids was slightly higher, but it mainly contained linoleic acid and a-linoleic acid, which were inevitable fatty acid to human body.

结果］共鉴定出山核桃仁油中的5中化合物，即亚油酸、油酸、亚麻酸、棕榈酸和硬脂酸，其含量分别为63.48%、19.90%、11.96%、3.31%和1.35%；山核桃仁油中n-6： n-3脂肪酸比例为5.31，与我国推荐的n-6：n-3脂肪酸比例(4~5)：1非常接近；山核桃仁油中饱和脂肪酸：单不饱和脂肪酸：多不饱和脂肪酸为1：4.3：16，多不饱和脂肪酸含量偏高，但多不饱和脂肪酸主要包括亚油酸和a-亚麻酸，均为人体必须脂肪酸。

Single dibasic acid can be identified by infrared spectroscopy while mixed dibasic acids have to be differentiated by paper chromatography in isopro-panol-ammonia system.

单一的二元酸可用红外光谱法鉴定，而混合二元酸则必须在异丙醇-氨水展开剂中用纸层析来鉴别。

Single dibasic acid can be identified by infrared spectroscopy while mixed dibasic acids have to be differentiated by paper chromatography in isopro-pan...

用顺丁烯二酸酐固化的环氧树脂经水解与分离后得到的主要是反丁烯二酸和少量顺丁烯二酸，前者的含量随固化温度的提高而增多，因而确证这一顺-反异构化反应是在固化过程中受热，而不是在水解，酸化时受化学试剂的作用产生的。

The present invention relates to a process for rapid solution synthesis of a peptide, the process comprising repetitive cycles of steps-: a coupling step, using an excess of an activated carboxylic component to acylate an amino component, a quenching step in which a scavenger is used to remove residual activated carboxylic functions, wherein the scavenger may also be used for deprotection of the growing peptide, one or more aqueous extractions and optionally, a separate deprotection step, followed by one or more aqueous extractions, characterised in that the process comprises at least one step, referred to as step, in which an amine or a thiol comprising a free anion or a latent anion is used as a scavenger of residual activated carboxylic functions.

本发明涉及快速溶液合成肽的方法，该方法包括步骤-的重复循环：偶联步骤，使用过量的活化羧基成分酰化氨基成分，淬灭步骤，在该步骤中使用清除剂除去残余的活化羧基官能团，其中该清除剂还可以用于使生长中的肽去保护，一或多个水抽提和任选地，独立的去保护步骤，之后进行一或多次水抽提，其特征在于该方法包括至少一个步骤，称作步骤，在该步骤中包含自由阴离子或潜阴离子的胺或硫醇用作残余活化羧基官能团的清除剂。

It showed that carboxylic saline in the molecule of zinc norfloxacine produced negative electric charge average distribution because of carboxylic saline forming carboxylic radicel.

说明氟哌酸锌中羧酸的盐类因形成羧酸根负离子，使负电荷平均化。

In all those complexes, no matter which conformation IDA assumes (mer- or fac-style), the two 0 atoms of 1N2O are both from carboxylic hydroxyl. However, by comparing the bond length, we can find that O(4) and O(2) atom is from different group in this complex, 0(4) atom from carboxylic hydroxyl, whereas, 0(2) from carboxylic carboxide.

值得注意的是：在这个双核配合物中，我们首次发现一种新颖的配位方式：IDA上与金属离子配位的三齿螯合原子是亚氨N原子、一个羧基上的羟基O原子和另外一个羧基上的羰基O原子。

In this report, half-esterification between these pendent hydroxyl groups of hydroxyl-PU and maleic anhydride could lead to new pendent groups, carboxylic groups. These highly polar carboxylic groups in the side chain of PU could play the role of internal emulsifier. They had self-dissociation ability in the water or were neutralized first by appropriate amount of base. Then, PU bearing carboxylic group could dispersed steadily in the water, named aqueous-based polyurethane dispersion.

在本论文中，利用原来亲油性Hydroxyl PU主链段上悬挂的羟基经由与琥珀酸酐的半酯化(Half-esterification Reaction)反应后，使PU在侧链上悬挂具有强极性的羧酸基，其可作为聚胺酯分子中的内乳化剂，羧酸基能在水相中自身解离产生离子或加入适量碱使之中合，使聚氨酯高分子能够稳定分散於水中，即所谓水性PU分散液(Aqueous-based Polyurethane Dispersion)。

Components of fatty acid in tea seed oil are oleic acid , linoleic acid, palmitic acid, stearic acid, linseed oil acid, myristic acid and so on while linoleic acid and linseed oil acid are necessary to maintain growing of human beings' skin and hair and they can also prevent arteriosclerosis.

茶叶籽油的脂肪酸成分为油酸、亚油酸、棕榈酸、硬脂酸、亚麻油酸、豆蔻酸等，而亚油酸、亚麻油酸是维持人体皮肤、毛发的生长所不可缺少的，能够预防动脉硬化。

And seven kinds of known fatty acid components were determined, including myristic acid C(subscript 14:0), palmitoleic acid C(subscript 16:1), palmitic acid C(subscript 16:0), linoleic acid C(subscript 18:2), oleic acid C(subscript 18:1), stearic acid C(subscript 18:0), and arachidic acid C(subscript 20:0). The content of linoleic acid in FTY-5 was 9.67%, which was much more than 0.67% in common yeast.

从FTY-5和普通酵母细胞的脂肪中检出了7个已知组分：肉豆蔻酸C(下标 14：0)，棕榈油酸C(下标 16：1)，棕榈酸C(下标 16：0)，亚油酸C(下标 18：2)，油酸C(下标 18：1)，硬脂酸C(下标 18：0)和花生酸C(下标 20：0)，FTY-5中亚油酸的含量较高，其含量为9.67%，高于普通酵母0.67%。

Main component of composition of the negative type photoresistive agent is polyimide, which possesses pendent -COOH. Reaction between partial carboxylic acid group and monomer with glycidyl acrylate generates bond junction. Rudimental other part of carboxylic acid group and additional additive component with third amino group and monomer of C=C double bond forms ionic bond junction.

本发明的负型光阻剂组合物的一主要成份为聚亚酰胺其具有悬垂的-COOH且部分的羧酸基与带有环氧基团的丙烯酸酯单体glycidyl(methacrylate反应形成键结，而残留的另一部分羧酸基与另外添加的成份带有第三胺基及C＝C双键的单体形成离子键结。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。