carboxylic acid 中文意思是什麼

carboxylic acid 解釋
羧酸。

  • carboxylic : adj. （含）羧基的。
  • acid : adj. 1. 酸味的。2. 【化學】酸的，酸性的。3. 〈比喻〉尖酸刻薄的，易怒的。n. 1. 酸味物。2. 【化學】酸。adv. -ly ,-ness n.
  1. The scheme initially involves acylation of thiophene using a carboxylic acid to afford the acyl thiophene.

    這條路線是先用羧酸使噻吩已酰化制得酸基噻吩。
  2. Enantioselective borane reduction of prochiral ketones catalyzed by s - indolin - 2 - yl methanol or - indoline - 2 - carboxylic acid enantioselective borane reduction of prochiral ketones catalyzed by

    硼烷體系中吲哚醇或吲哚酸催化的前手性酮的不對稱還原
  3. Metronidazole ; amino carboxylic acid ; amino acid ; diester

    -氨基羧酸氨基酸二酯
  4. Synthesis of coumarin - 3 - carboxylic acid ethyl ester

    甲酸乙酯的合成
  5. Synthesis and applications of 2 - phenylmethyl thio - 3 - pydine - carboxylic acid

    吡啶甲酸的合成及應用
  6. Ind oline - 2 - carboxylic acid ; ketones

    -吲哚酸酮
  7. Studies on the synthesis of hexakis 4 - carboxylic acid ethyl ester phenoxy cyclotriphosphazenes

    三聚磷腈的合成研究
  8. Hydrolysis of carboxylic acid esters catalyzed by cationic gemini surfactant micelle

    雙子陽離子表面活性劑膠束催化羧酸酯水解
  9. Xylenol carboxylic acid

    二甲苯酚酸
  10. Pyridine carboxylic acid

    吡啶羥酸
  11. Degenerate oligonucleotides to highly conserved regions of cucumis melo 1 - aminocyclopropane - 1 - carboxylic acid ( acc ) oxidase gene were used to prime the amplification of fragment of 128bp by ploymerase chain reaction ( pcr ) in samples of genomic dna from fruit of cucumis melo l. cv hetao flesh, which was cloned into plasmid vector pmd - 18 - t. the clon of antisense orientation were selected, and it was inserted downstream of camv35s promoter and enhancer " " of tmv into the plant expression vector pbinyxw, antisence expression vector pbinya was constructed. at the base that pollination and fertilization of cucumis melo l. cv hetao was studied, using pollen tube pathway transformate cucumis melo l. cv hetao, 76 fruit had been obtained, moreover, hardness and content of sugar were analysed

    本實驗以河套蜜瓜果肉基因組dna為模板，用甜瓜acc氧化酶基因特異寡核苷酸鏈為引物進行pcr擴增，得到128bp的擴增產物。將得到的擴增產物克隆到質粒載體pmd - 18 - t上，篩選反向克隆，然後將其反向構建到植物表達載體pbinyxw的camv35s啟動子和tmv增強子「 」的下游，構建成反義表達載體pbinya 。並在對河套蜜瓜授粉受精生物學研究的基礎上，通過花粉管通道法轉化河套蜜瓜，共獲76顆瓜，並進行了硬度和含糖量的分析。
  12. Determination of 3, 5 - dicaffeoyloxy cyclohexane carboxylic acid in erigeron breviscapus by hplc assay

    雙咖啡酰氧基奎寧酸的含量
  13. Hi this thesis, the setting time of various retarders had been tested, in which three retarders with good retarding action, citric acid, sodium tripolyphosphate, bone glue are respectively chosen from three types of retarders, hydroxyl carboxylic acid type, phosphate type and protein type, and the strength and setting time of gypsum added with them are determined. effect of some factors, such as ph value, fineness of hemihydrate, type of gypsum on the retarding action of the retarders is also studied

    本文對多種緩凝劑進行凝結時間測試，選擇效果良好的羥基羧酸、無機鹽和蛋白質類型的三種緩凝劑：檸檬酸、多聚磷酸鈉和骨膠，測定它們對石膏凝結時間、強度等宏觀性能的影響，並分別研究ph值、石膏細度和石膏種類等因素對它們的緩凝效果的影響。
  14. In order to find replacer for metronidazole and drug selection. some diesters or esters of acids containing nitrogen with metronidazole were designed and synthesized, which have difference in water - solubility. metronidazole was reacted with the corresponding amino or imino multi - carboxylic acid compounds in the presence of acetic anhydride or thionyl chloride or dcc. the intermediate of nitrilotriacetic acid with ac

    為尋找羥乙基甲硝唑的替代物，分別採用酸酐法酰氯法或dcc法，將氨基羧酸與羥乙基甲硝唑反應，得到5個親水性不同的單酯或二酯，用ms譜確證了次氨基三乙酸與乙酸酐反應的中間物，並對得到的酯的
  15. The most commonly used method for the covalent binding of biomolecules onto 1 - d nanostructures is through the diimide - activated amidation of carboxylic acid terminated nanostructures

    最常用的方法是通過端羧酸基納米結構的二酰亞胺活化氨基化合物來進行生物分子與1 - d納米結構的共價結合。
  16. This paper designs molecular structure of organic water - repellent admixture. we choose carboxylic acid that possesses amphiphilic molecular structure and sodium carbonate and potassium hydroxide as important raw materials. they carry through soaps turns reaction to synthesize polycarboxylic acid type waterproofing agent

    本文通過對有機質防水劑分子結構設計，選擇具有兩親結構的羧酸（酸a 、酸b ） 、無水碳酸鈉、氫氧化鉀為主要原材料，通過皂化反應，合成多元羧酸系防水劑。
  17. Methods of analysis of wood preservatives and treated timber - determination of carboxylic acid type in zinc and copper carboxylate preservative solutions by gas chromatography

    木材防腐劑和經過防腐處理的木材的分析方法.用氣相色譜法測定鋅和銅羧酸鹽中羧酸的類型
  18. Batch chloration plant of synthesizing - chloro t - butyl carboxylic acid chloride was improved by using continuous liquid phase method

    摘要利用連續液相氯化法對一套間歇氯化法生產-氯代特戊醯氯的裝置進行改造。
  19. O - or n - alkylation was carried out directly by simple heating the mixture of carboxylic acid or amine with quaternary ammonium salt

    將羧酸或胺類化合物與季銨鹽進行簡單的混合加熱，便可直接得到o -或n -烷基化產物。
  20. This article introducd the main common synthesis methods of fluoro - aromatic carboxylic acid, and listed some synthesis routes to produce pharmaceutical intermediates

    摘要介紹了含氟芳香羧酸的合成方法，並列舉了一些重要醫藥中間體的合成路線。
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