acid exchange 中文意思是什麼

acid exchange 解釋
酸性交換
  • 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.
  • exchange : vt 1 （以某物與另一物）交換，調換 （for） 2 互換，交流，交易。3 兌換。 vi 1 兌換 （for） 2 交換；...
  1. The preparation method of methyl 1 - naphthylacetate catalyzed by sulphuric acid, hydrochloric acid, chlorosulfonic acid, p - toluene sulfonic acid, amino sulfonic acid, strongly acidic cationic exchange resin, ferric chloride hexahydrate, stannic chloride pentahydrate, aluminium chloride, ferric sulfate, aluminium sulfate, titanium sulfate, sodium bisulfate monohydrate, solid super acid, heterpoly acid, support heterpoly acid, composite titanate and p - toluene sulfo - chloride etc. catalyst were reviewed

    摘要評述了硫酸、鹽酸、氯磺酸、對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水三氯化鐵、五水四氯化錫、三氯化鋁、硫酸鐵、硫酸鋁、硫酸鈦、一水硫酸氫鈉、固體超強酸、雜多酸、固載雜多酸、復合鈦酸酯和對甲苯磺酰氯等催化劑催化合成1 -萘乙酸甲酯的方法。
  2. The methods for synthesizing p - hydroxyl ethyl benzoate catalyzed by sulfuric acid, p - toluene sulfonic acid, amino sulfonic acid, strongly acidic cationic exchange resin, ferric chloride hexahydrate, aluminum chloride hexahydrate, stannic chloride pentahydrate, copper sulfate, titanium sulfate, rare earth metal oxide, sodium bisulfate monohydrate, solid super acid and heteropoly acid and so on are reviewed

    摘要評述了硫酸、對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水合三氯化鐵、六水合三氯化鋁、五水四氯化錫、硫酸銅、硫酸鈦、稀土金屬氧化物、一水硫酸氫鈉、固體超強酸、雜多酸等催化劑催化合成對羥基苯甲酸乙酯的方法。
  3. The synthesis methods of isobutyl acetate catalyzed by p - toluene sulfonic acid, amino sulfonic acid, strongly acidic cationic exchange resin, ferric chloride hexahydrate, cupric chloride bi - hydrate, stannic chloride pentahydrate, ammonium ferric sulfate dodecahydrate, sodium bisulfate monohydrate, potassium bisulfate, chitosan sulfate, sodium dihydrogen phosphate, rare earth metallic oxide, solid super acid, heteropoly acid and molecular sieve etal were reviewed

    摘要評述了對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水三氯化鐵、二水氯化銅、五水四氯化錫、十二水合硫酸鐵銨、一水硫酸氫鈉、硫酸氫鉀、殼聚糖硫酸鹽、磷酸二氫鈉、稀土金屬氧化物、固體超強酸、雜多酸和分子篩等催化劑催化合成乙酸異丁酯的方法。
  4. Catalytic synthesis of diisoamylester maleate with toluene - p - sulfonic acid, amino - sulfonic acid, strongly acidic cation exchange resin, ferric chloride hexahydrate, stannic chloride pentahydrate ; ammonium ferric sulfate dodecahydrate, sodium bisulfate monohydrate, solid super acid and heteropoly acid was reviewed

    摘要綜述了對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水三氯化鐵、五水四氯化錫、十二水合硫酸鐵銨、水硫酸氫鈉、固體超強酸和雜多酸催化合成馬來酸二異戊酯的方法。
  5. The experimental results of the catalysts such as p - toluene sulfonic acid, strongly acidic cationic exchange resin, sulfo - polyvinyl chloride resin ferric chloride hexahydrate, polyvinyl chloride - ferric chloride resin chlorinated polyvinyl chloride - ferric chloride resin, stannous chloride dihydrate, ammonium ferric sulfate dodecahydrate, ferrie sulfate - potassium thiosulfate, cerium sulfate tetrahydrate, sodium bisulfate monohydrate potassium bisulfate, neodymia solid super acid and heteropoly acid for catalytic synthesis of ethyl chloroacetate were reviewed

    摘要評述了對甲苯磺酸、強酸性陽離子交換樹脂、磺化聚氯乙烯樹脂、六水三氯化鐵、聚氯乙烯三氯化鐵樹脂、氯化聚氯乙烯三氯化鐵樹脂、二水氯化亞錫、十二水合硫酸鐵按、硫酸鐵硫代硫酸鉀復鹽、四水硫酸鈰、一水硫酸氫鈉、硫酸氫鉀、三氧化二釹、固體超強酸和雜多酸等催化劑催化合成氯乙酸乙酯的實驗結果。
  6. Extraction of boric acid from brines by ion exchange

    己二醇從鹵水中萃取硼酸
  7. Removal and recovery chromic acid from electroplating waste by ion exchange

    離子交換法去除與回收電鍍廢水中鉻酸的實驗研究
  8. Study on decoloration of shikimic acid by ion exchange resin

    離子交換樹脂對莽草酸粗提液的脫色研究
  9. The adsorption of the livulinic acid, formic acid and glucose on anion exchange resins

    葡萄糖在堿性樹脂上的靜態吸附性能
  10. Sodium chloride and hydrochloric acid are often used to regenerate spent ion exchange resins used in water purification.

    氯化鈉和鹽酸常用來再生水凈化中用的廢的離子交換樹脂。
  11. This article mainly focus on the selection and amelioration of catalyst. we think the mechanism of depolymerization reaction of the poly lactic acid ( oligomer ) is a intramolecular ester exchange reaction

    本文從改善合成反應的催化條件入手，通過對丙交酯合成反應的機理分析，認為整個反應是一個酯化和分子內的酯交換的反應過程。
  12. New developments of polycarboxylic acid derivative catalysts, ion exchange resin catalysts, macrocyclic chelating compound catalysts, quaternary phosphonium salt catalysts, heterogeneous hydrotalcite - type catalysts and other catalysts which to be used in ethylene oxide catalytic hydration, and the catalysts of synthesis method of ethylene glycol via preparation and reaction of ethylene carbonate are expounded

    闡述了用於環氧乙烷催化水合反應中的多羧酸衍生物催化體系、離子交換樹脂催化體系、大環螯合物催化體系、季?鹽催化體系、多相水滑石型催化體系及其他催化體系近年來的研究進展；同時闡述了用於碳酸亞乙酯法合成乙二醇反應中的催化體系的新進展。
  13. 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。
  14. Determination for strong - base group, weak - base group and weak - acid group exchange capacity of acrylic type anion exchange resins

    丙烯酸系陰離子交換樹脂強堿基團弱堿基團和弱酸基團交換容量測定方法
  15. Crystal zirconium phosphate - phosphonate has the stability and regulity of interlayer floor of inorganic a - zirconium phosphate, they still have the designability of the organic group in the interlayer and adjustment of the ratio of organic and inorganic phosphorus acid, they are a kind of potential smart material, we can process molecule design and optimize filtration according to the requirement of goal reaction, we can prepare special ion - exchange, catalyst, catalyst supporters nonlinear optics compound, solid state proton conductivity and the intercalation complex precusor by introducing different active organic group or active center into the choice and stable framework of inorganic a - zirconium phosphate

    有機?無機晶態混合磷酸鋯具有無機磷酸鋯的層板穩定性和規整性，同時具有層間有機基團的可設計性和有機無機磷酸混合配比的可調節性的特點，是一類很有潛力的靈巧材料，並且可以根據目標反應的要求進行分子設計和優化篩選，在無機磷酸鋯優良穩定的骨架上引入不同的活性基團或活性中心，可以制備出性能獨特的離子篩、催化劑、催化劑載體、非線性光學物質、固態質子導體和制備插層復合物的前驅物。
  16. Huwentoxin xi ( hwtx ~ xi ), a serine protease ! inhibitor, consists of 55 amino acid residues with three disulfide bridges. the toxin was isolated from the venom of the chinese spider ornithochoctonus huwena by ion - exchange chromatogram - phy and reverse phase high performance liquid chromatography

    本文報道從虎紋捕鳥蛛（ ornithochoctonushuwena ）粗毒中，應用陽離子交換和反相高效液相色譜的方法分離到一種胰蛋白酶抑制劑，命名為huwentoxin - （ hwtx - ） 。
  17. A neurotoxic peptide ( named huwentoxin - v ) was purified from the venom of the spider by a combination of ion exchange chromatography and reverse phase hplc. hwtx - v has 35 amino acid residues, with the molecular mass 4111. 4da. the amino acid sequence has been determined as nh2 - ecrwylggcsqdgdcckhlqchsn - yewcvwdgtfs - cooh, which consists of 6 cys, formed three pairs of disulfide bridges

    本文報道從虎紋捕鳥蛛（ selenocoimahuwena ）粗毒中，結合陽離子交換和反相高效液相色譜分離純化出一種昆蟲毒素，命名為虎紋捕鳥蛛毒素- （ huwentoxin - ， hwtx - ） ；其天然突變體（ themutantofhuwentoxin ， mhwtx - ）也同時純化出來。
  18. Layered and pillared material are a kind of multifunctional material which were developed in recent years, much attention has been paid to this kind of material for its application in ion - exchange catalysts solid state proton conductivity, nonlinear optics and physic. a lot of literature have reported the intercalation behavior of a - zirconium phosphate ( abbreviated as a - zrp ), different guest molecules inserted into a - zrp have been studied in detail, those guest molecules include amine, alcohok amino acid protein, enzyme coornadiate compound and coronal compound. the intercalation guest is restricted by their size and basicity

    層柱材料是近年來發展起來的一類多功能材料，由於其在離子交換、催化、固態質子導體、非線性光學以及醫學等方面的廣泛應用而受到國內外研究者的重視，大量文獻報道了-磷酸氫鋯zr （ hpo _ 4 ） _ 2 ? h _ 2o （ - zirconiumphosphate ，縮寫為- zrp ）的超分子插層化合物及插層性能，其中對不同的客體分子對磷酸鋯的嵌入做了詳細的報道，客體分子的種類包括氨、醇、氨基酸、蛋白質、酶、配合物、冠狀化合物等。
  19. The hwtx - i gene was chemically synthesized according to its known cdna sequence, the gene was inserted into vector ppic9k which contained aoxj promotor and the sequence of a secreting signal peptide - a - factor, the cloning ppic9k / hwtx - i was constructed and confirmed by two - step pcr and dna sequence analysis, then it was transformed into host strain gs115, a his + muts cell line was screened and multicopy transformants were screened by various g418 concentrations, the multicopy transformant was named gh1. gh1 was cultivated in flasks. after 6 days of induction by 0. 5 % methanol, the supernatant was checked by 16. 5 % tricine - sds page, which showed there was a band in the position of 3. 5 - 6. 1kd, then it was isolated and desalted by ultrofiltration followed by ion exchange of cm column, after reverse phase hplc of ci8 and vacuum drying, the purified rhwtx - 1 was obtained which was proved to be correct recombinant hwtx - i by tricine sds - page, maldi - tof mass spectrometry, amino acid composition analysis, the n - terminal amino acid sequence and its biological activity, the final field of the purified rhwtx - i was about 80mg / l, accounting for 23. 6 % of it total secretory proteins

    將帶有hwtx -基因的ppic9k經blgii線性化后，轉化酵母宿主菌gs115原生質體后經篩選陽性克隆並經表型鑒定為his ~ + mut ~ s酵母菌，進一步用遺傳毒素g418篩選多拷貝的轉化菌株，命名為gh1 ；將gh1甲醇酵母菌用0 . 5的甲醇誘導表達，發酵上清經90飽和度的（ nh _ 4 ） _ 2so _ 4沉澱， yw - 3 （ mwc03000 ）的超濾膜超濾，再經cm陽離子交換， c _ （ 18 ）反相hplc純化得到分子量為4kd左右的組分，其中4289 . 05的組分經質譜鑒定，氨基酸組成分析和序列測定為正確的表達產物，生物學活性表明其活性為天然毒素活性70 % ，表達量為80mg / l 。
  20. Using the electric current cation and anoin exchange action, like l - ascorbic acid directly sends in the cell, the activation cell, the desalination pigment, the promotion collagen and the tension textile fiber regeneration increase skin organizes to guarantee the water ability, lets the skin tightly send smoothly has the elasticity, achieves the crystal clear beautiful skin effect

    利用電流正負離子的交換作用，如左旋c直接送入細胞中，活化細胞、淡化色素、促進膠原蛋白及彈力纖維的再生增加皮膚組織的保水能力，讓皮膚緊致光滑有彈性，達到晶瑩剔透的美膚效果。
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