1、

the ligand of pyridine carboxylic acid can variously react with transition metal cations, lanthanum metal cations and other metal cations.

吡啶羧酸类配体能与过渡、非过渡和镧系金属离子配位形成稳定配合物,而且配位方式不拘一格。

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2、

carboxylic acid carboxyl acyl halide acid anhydride ester esterification

羧酸羧基酰卤酸酐酯酯化反应

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3、

by using phase transfer catalyst, the yield of the preparation of cyclopropane carboxylic isopropyl ester was increased.

在环丙甲酸异丙酯的合成反应中,通过相转移催化剂提高了反应收率。

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4、

amperometric immunosensor based on mercapto carboxylic acid self assembled monolayer for phytohormone indoleacetic acid assay

基于巯基自组装单层膜的植物生长激素吲哚乙酸电化学免疫传感器的研究

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5、

there are certain correlations between the properties and composition of the mixed trimethylolpropane esters of carboxylic acids.

三羟甲基丙烷混合羧酸酯的性能与其组成之间存在着某种相关关系;

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6、

at present, the common water reducing agents used in vast amount in the construction projects are naphthalene, aminosulfonic acid series and poly carboxylic acid series superplasticizers, of which the universal applications in concrete have greatly expanded the field of application in concrete industry.

目前,工程中常用的减水剂主要有萘系、氨基磺酸系和聚羧酸系高效减水剂等,它们在混凝土中的广泛应用很好地拓展了混凝土工业的应用范围。

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7、

experiment results indicated that hz-type solid acids were ideal catalysts for direct esterification of straight chain carboxylic acids and primary alcohols.

试验表明HZ型固体酸是饱和直链羧酸和伯醇直接酯化的特效催化剂。

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8、

the chemically modified electrode of nafion-multiwalled carbon nanotube ( mwcnt) functionalized with carboxylic group coated glassy carbon electrode ( gc/ nafion+ mwcnts) has been prepared. the electrochemical behavior of nifedipine ( nif) and its electroanalytical method has been studied.

研制了以Nafion分散羧基化多壁碳纳米管的化学修饰电极(Nafion-MWCNTs/GC),研究了硝苯地平(NIF)在修饰电极上的电化学行为和测定方法。

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9、
10、

the study on the rearrangement reaction with loss of alcohol of cyclopentene one carboxylic esters under ei ms

环戊烯酮甲酸酯衍生物的质谱重排失醇反应研究

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11、

synthesis of two ferrocene carboxylic acids via willgerodt-kindler reaction and mechanism

基于Willgerodt-Kindler反应的两种二茂铁羧酸的合成及机理研究

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12、

in experiment, ferrocene carboxylic acid acted as carbon sources and catalytic agent sources.

实验中,二茂铁甲酸既是碳源又是催化剂前驱体。

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13、

effects of pyridine carboxylic acid chromium on the production trait of growth slaughter pig

吡啶羧酸铬对生长育肥猪生产性能的影响

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14、

finally, mixed coordination of metal salts reacting with rigid nitrogen heterocycle and carboxylic acid ligands was investigated and four complexes ( 10,11,12,13) were obtained.

同时,对刚性含氮杂环与羧酸类配体之间的混配做了一些研究,得到了4种配合物(配合物10、11、12、13)。

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15、

metronidazole ; amino carboxylic acid ; amino acid ; diester

氨基羧酸氨基酸二酯

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16、

tropisetron hydrochloride was synthesized from 1h-indol-3-carboxylic acid by chloride acetylation and condensation with tropic alcohol.

以3-吲哚甲酸为起始原料,经氯化亚砜酰氯化、与托品醇缩合合成了托烷司琼盐酸盐。

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17、

introducing electron-withdrawing groups, such as carboxylic ester groups, compensate part of negative shift of the reduction wave due to the effect of the saturation of a fullerene double bond.

引入具有拉电子性质的基团,如羧酸酯基,则会部分抵消由于C60共扼结构被破坏而引起的电位负移,结果使得电位负移值减少。

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18、

preparation methods and degradation behavior for poly ( carboxylic acid silyl ester) s were reviewed.

综述了聚羧酸硅基酯的合成方法和降解性质。

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19、

liquid crystalline properties of siloxanes polymer containing carboxylic acid and cholesteric groups

含羧酸与胆甾基元的硅氧烷类聚合物的液晶性能胆甾醇油酰基碳酸酯

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20、

sulfonate, the hydrophilic group of amino-sulphonate, is stronger than carboxylic group, when polymerizing polyurethane at the same hydrophilic level, the consumption of the molar ratio of sulfonate is less than that of carboxylic group.

氨基磺酸盐的亲水基团为磺酸盐,磺酸盐的亲水性强于羧酸盐,故在制备亲水性程度相当的聚氨酯时,其摩尔用量比羧酸基少。

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