carboxyl group 中文意思是什麼

carboxyl group 解釋
羧基
  • carboxyl : n. 【化學】羧基。
  • group : n 1 群；批，簇。2 集團，團體，小組。3 【化學】基，團，組；（周期表的）屬，族。4 （雕塑等的）群像...
  1. Each fatty acid consists of a hydrocarbon chain with a carboxyl group at one end.

    每個脂肪酸由一端帶有一個羧基的碳酸鏈組成。
  2. Modified starch. determination of carboxyl group content of oxidized starch

    改性澱粉.氧化澱粉羧基含量的測定
  3. Modified starch - determination of carboxyl group content of oxidized starch

    改進的澱粉.氧化澱粉中羥基含量的測定
  4. Sam has three ionizable groups besides the sulfonium pole : the carboxyl and the aminic groups of the amino acidic chain with pk 1. 8 and 7. 8 respectively and the aminic group of the purine with pk 3. 4. in an acid environment sam is positive charged, so it could be adsorbed by weak - acid cation exchange resin

    Sam除具有一個帶正電荷的鋶外，還有三個可離子化的基團： pk _ a分別為1 . 8 、 7 . 8的氨基酸鏈上的羧基和氨基， pk _ a為3 . 4的嘌呤環上的氨基。
  5. 9. the extraction of nitric acid with tibopda and tbopda causes great shifts for the absorption peaks of both carboxyl group and ether group of the complex compound in ir spectrum. for the complex compound of eu, u and th, graet shift occurs only in the wave range of carboxyl group. the ethe

    本工作中求出的np （ v ）在低酸下歧化平衡常數未見文獻報道，對iaf料液中的鋒在調價後用加入尿素的辦法將其穩定在不易被草取的五價，在
  6. Organochlorosilane is widely used in the protection of organic functional groups involving hetero atoms, such as hydroxyl, carboxyl, carbonyl, amino group and so on. the conditions of protection and deprotection and the application development in the synthesis of pharmaceuticals are given in the article

    就其在保護含雜原子的有機官能團方面討論了對羥基、羧基、羰基及胺基等的保護和去保護條件及其在藥物合成中的應用。
  7. The synthesis technology of various liquid rubbers with different active group terminated, such as hydroxyl - terminated, carboxyl - terminated, isocyanate - terminated, ami - no - terminated, mercaptan - terminated and various main chains like polybutadiene, polyurethane, polystyrene were reviewed with 23 references

    摘要綜述了端羥基、端羧基、端異氰酸酯基、端氨基、端巰基等活性端基，以及聚丁二烯、聚氨酯、聚苯乙烯等不同主鏈結構的液體橡膠的合成技術。
  8. Its molecular structure shows that it acts long carbochain as hydrophobic group and serves carboxyl and hydroxyl group as hydrophilic grouping

    其分子結構特徵為:以長碳鏈烴基為憎水基， ? coom為親水基團。
  9. However, due to the poor reactive carboxyl group of c - terminus, it is difficult to derivatize peptides topeptidyl t hiohydantoins for c - terminus, and the schlack - kumpf degradation based on thiohydantoin procedure has not yet been developed to such an efficient method as edman degradation

    然而，由於c端羧基的化學性質不活潑，致使schlack - kumpf降解法的研究進展緩慢。但通過近十年的研究表明該方法是很有希望成為常規c端順序測定的方法。
  10. The studies expressed that the tensile - strength declined with the growth of dose rate after the radiation treatment, and at the same time, the gel content had extreme value with the change of the dose rate. the surface of uhmwpe fibers showed some irregular micro - pits and dents after radiation treatment, narnely rough degree increasing. their number and deepness increased with increase of dose. and this phenomenon is the most obvious when the dose rate was 8. 5kgy / s and the dose was 400kgy. at the same time some containing oxygen groups, including hydroxyl group, carbonyl group and carboxyl group, were introduced into the fiber surface which was exposed to the air

    研究表明， uhmwpe纖維經電子束輻照處理后，纖維的拉伸斷裂強度隨劑量率的增加呈下降趨勢，凝膠含量隨著劑量率的變化存在極值。纖維表面出現了不規則的微裂紋和凹痕，隨著劑量的增大，電子束對纖維表面的刻蝕程度增加，在本研究中以劑量為400kgy劑量率為8 . 5kgy s時刻蝕效應最為明顯。同時，在空氣中進行輻照時，纖維表面被引入了一些含氧基團，包括羥基、羰基和羧基。
  11. 4. the interaction between la3 + and mp - 11 would decrease in the intensity of the soret band and shift the band position, because of the strong coordination action of la3 + with o of the carboxyl group in the heme group and weak interaction of la3 + with o of the amido group in the peptide. the interaction also increases in the non - planarity of the heme group

    由於la ~ （ 3 + ）與血紅素上羧基氧o配位鍵合作用較強，而與多肽鏈上的酰氨氧o鍵合作用較弱，因此使mp - 11的soret帶吸收值下降，峰位紅移，血紅素環的非平面性增加。
  12. All of 19 amino acid thiohydantoins were synthesized by using free amino acids as starting materials, acetic anhydride as the carboxyl group activating reagent and tms - itc as the derivatizing reagent. the proiine thiohydantoin was prepared by using ammonium thiocyanate ( n114scn ) as the derivatizing reagent

    本文以l -氨基酸為原料，採用乙酸酐作活化試劑， tms - itc作為偶聯試劑，制備了19種th - aa ，另外th - pro的制備是用nh _ 4scn作為偶聯試劑獲得成功的。
  13. The interaction between sensitive coatings and formic acid vapors was the strongest in the carboxyl acid material vapors, so that the ct - c : h film containing amino - group was the most sensitive to formic acid

    在梭酸類物質中，甲酸分子的酸性氫鍵最強。故摻胺碳膜對甲酸蒸氣分子具有最高的響應靈敏度。
  14. The response mechanism of the film to organic vapors was discussed primarily. it is thought that the film reacted with molecule of carboxyl acid vapors through both the basicity hydrogen - bond of amino - group and the acid hydrogen - bond of carboxyl acid molecule

    認為摻胺碳膜通過胺基團的堿性氫鍵同梭酸類物質蒸氣分子的酸性氫鍵相互作用而使蒸氣分子在薄膜表現產生吸附引起轉換器產生相應響應。
  15. Modified starch - determination of carboxyl group content of oxidized starch iso 11214 : 1996 ; german version en iso 11214 : 1996

    改進的澱粉.氧化澱粉中羥基團含量測定
  16. The fact that ir vibrating peaks of the carboxyl group have made a wide and split peak is explained in this paper

    解釋了該類配合物的羧基紅外振動峰是一寬峰且有劈裂的特點。
  17. Ac - hac is a kind of polymer, which has strong chelation ability with cd2 + because of its carboxyl group

    本方法得到的cds納米粒子比前一種方法得到的cds納米粒子具有更好的發光性能。
  18. Take removes in the water to have the slight pollutant as the goal activated charcoal surface modified direction is : the reduced surface lactone base and the carboxyl group and so on contain the oxygen functional group the content, increase activated charcoal surface sparse river characterthe modified activated charcoal in has a drink together in the water used adsorption treating processes, a weak basicity environment is good

    我們研究了以濃硝酸、次氯酸和氨水去除水中三氯甲烷為主要目標表面改性活性炭吸附處理技術。立意方向為:減少表面內酯基及羧基等含氧官能團的含量，增加活性炭表面的疏水性。
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