離子化基團 的英文怎麼說
中文拼音 [lízihuàjītuán]
離子化基團
英文
ionogen-
Through the analyzing the macro - structure to micro - structure, the author considers that retarding mechanism of citric acid is that citric acid and ca in the gypsum form the complexant ion, and hinder the crystallization center of dihydrate crystal bigger ; that of sodium tripolyphosphate is that it combined with ca, hinders the dissolve of hemihydrate. formation and growth of crystallization center ; that of bone glue is the glue - protection and chemical absorption action of active group, which also retards the formation and growth of crystallization center
通過宏觀到微觀的分析,筆者認為,檸檬酸的緩凝作用的原因主要在於檸檬酸與鈣形成絡合離子,影響了二水石膏晶體的晶核長大過程;多聚磷酸鈉與鈣形成某種復鹽,對于石膏晶體的溶解、成核和長大過程均有強烈的阻礙影響;骨膠則在於膠體對半水石膏的包裹和活性基團的化學吸附,使二水石膏晶體的成核和長大困難。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。The experimental method includes selecting pure complexes of histidine - containing or cysteine - containing materials, from c - and n - terminal group of these amino acids to link to a group which have color or fluorescence or ultraviolet absorption, elucidating their binding affinity, fluorescence or uv - visible spectrum properties with zinc at physiological concentration and to elucidate their structure in the solid state via infrared spectroscopy. with the help of the concerned the data, the analysis was done to prove whether it can be applied to the zinc detection, in other words, whether it can be used as a new fluorescence probe for zinc detection
本實驗首次選用在生物體內與zn ~ ( 2 + )鍵合能力很突出的物質? ?組氨酸和半胱氨酸,採用類似於多肽合成的方法,在其羧基或氨基分別嫁接上一個帶有標記的基團,生成穩定的共價鍵化合物;在此化合物中模擬生理濃度條件加入鋅離子,通過紅外圖譜、紫外圖譜或熒光圖譜的變化分析鋅離子對標記基團是否產生影響,再結合有關數據分析其是否適合檢測鋅離子,即是否可能作為新的鋅離子熒光探針。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。By film thickness measured, fourier transformed infrared spectrometer ( ftir ) analysis, x - ray photoelectron spectroscopy ( xps ) analysis and relative irradiance measurement, the effect of microwave input powers on deposition rates, f / c ratios, bonding configurations of ct - c : f films and the radicals in plasma originating from source gases dissociation is analyzed
由於微波功率的改變會導致等離子體中電子溫度和等離子體密度發生變化,從而造成不同的源氣體分解過程,結果微波功率的升高導致了薄膜沉積速率的提高、 f / c比的降低,同時也導致薄膜中cf和cf _ 3基團密度的降低,而保持cf _ 2基團密度接近常數。The basic tenet of ? he strengthening is the physical and chemical reaction course : that is the hydration ; the carbonation of cement ; ion exchange and consolidate
加固的基本原理是水泥加固土的物理化學反應過程:水泥的水化反應;水泥的碳化反應;離子交換與團粒作用。The surface chemistry of anion - exchange fiber synthesized from natural cotton was also studied, in order to further understand the effect of surface functional groups of ion - exchange fibers on their adsorptive and exchange properties
還對天然棉纖維基離于交換纖維的表面化學進行了研究,以探討離子交換纖維的表面官能團對吸附交換性能的影響。The close relative tasks are extracted based on dsm ( design structure matrix ). the stock model is analyzed too. finally, the arithmetic analysis of juhua project is carried out
在理論研究的基礎上,還對衢州巨化集團6萬噸年離子膜技改工程項目進行了算例分析。Both the frequency and intensity of 1146. 0cm - 1 change largely, etc. discussed and compared the mechanism of these interaction in detail we got some conclusions as following : both zn2 + and cd2 + ions can chelate with po2 - and come into being - po2 - me2 + n7 ( purine ) chelate. as to zn2 + ions, when r2. 0, the quantity of po2 - zn2 + n7 is directly linear with r. when r2. 0, zn2 + ions even can chelate with c at n3 - o2 sites and this chelation will disrupt the h - bond between gc base pairs and make the dna structure unstable. as to cd2 + ions, only when r is within 1. 0 - 1. 5 can this chelation take place and the relation of the quantity of this chelate with r is not easy to conclude
通過對這些變化進行詳細討論和分析,我們得到了如下的結論: zn ~ ( 2 + )和cd ~ ( 2 + )都可以跟dna的磷酸基團螯合,形成- po _ 2 ~ - … me ~ ( 2 + ) … n7 ( g )螯合物,但是前者的螯合跟離子濃度有很大的關系,在摩爾濃度比小於2 . 0時,螯合物的生成量跟r成正比關系,而後者的螯合跟離子的關系不是很明顯,只有當r處於1 . 0至1 . 5之間時,螯合作用才能進行,並且螯合物的生成量跟r之間沒有很明顯的關系存在。By increasing the h2 dilution ratio, it is found that atomic hydrogen can selectively etch amorphous phase and stabilize crystalline phase. from the study on the distance from substrate to catalyzer, choosing a proper distance can ensure the gas fully decomposed, while a relatively low substrate temperature can cause the nanocrystalline particles to lose mobility and keep their sizes. the pre - carbonization process can enhance the nucleation density and make the growth of high quality nanocrystalline p - sic films much easier
實驗結果表明:隨著工作氣壓的減小,薄膜的晶粒尺寸有所減小;通過提高氫氣稀釋度,利用原子氫在成膜過程中起的刻蝕作用,可以穩定結晶相併去除雜相;選擇適當的熱絲距離能保證反應氣體充分分解,又使襯底具有較高的過冷度,是形成納米薄膜的重要條件;採用分步碳化法可以提高形核密度,有利於獲得高質量的納米- sic薄膜;襯底施加負偏壓可以明顯提高襯底表面的基團的活性,因負偏壓產生的離子轟擊還能造成高的表面缺陷密度,形成更多的形核位置。In this thesis, we have mainly studied the characteristics of chf3, c6h6 and cf4 electron cyclotron resonance ( ecr ) plasma using langmuir probe and optical emission spectroscopy ( oes ). the relative concentration of different radicals in chf3 plasma and the effect of chf3 / c6h6 ratio on bond configuration of a - c : f films were discussed. it was showed that h, f, c2 were the main radicals among radicals of h, f, c2, ch and f2 in chf3 ecr plasma
重點研究了chf _ 3 、 cf _ 4和chf _ 3 c _ 6h _ 6放電等離子體中基團的分佈;分析了不同基團的相對密度隨宏觀放電條件(微波輸入功率、放電氣壓、源氣體流量比)的變化規律;探討了等離子體中各種基團的生成途徑;在不同源氣體流量比的條件下沉積了a - c : f薄膜並通過傅立葉變化紅外吸收光譜( ftir )的測量得到了薄膜中鍵結構的信息;分析了a - c : f薄膜的沉積速率及其鍵結構與等離子體空間基團分佈狀態之間的關聯。Non - ionic surface active agents. polyethoxylated derivatives. iodometric determination of oxyethylene groups
非離子表面活性劑.聚乙氧基衍生物.氧化乙烯基團碘量的測定After interfacial polymerization, the module was filled with a 10 % ( wt. % ) aqueous trimethylamine solution and kept for 24 hours to convert the chloromethylated groups into cationic quaternary ammonium groups
當界面聚合反應完成後,將膜浸入濃度為10的三甲胺溶液鄭州大學碩士學位論文中,通過化學修飾將其氯甲基基團轉化成陽離子季胺鹽基團。In this study, it has been put forward that taking reactive nanometer magnetic fe304 particles as magnetic nucleus, and the copolymer of styrene ( st ) ? crylic acid ( aa ) as macromolecular shell, we could synthesize, magnetic polymer composite microspheres containing carboxyl groups on their surface, then microspheres are activated by thionylchloride, the surface of such magnetic composite microspheres thus produced had reactive acid chloride groups which then react with the free amino groups of the free soluble enzymes to give peptide bonds ( ? o ? h ?,
本研究首次提出了以納米級磁性fe _ 3o _ 4粒子為核心,苯乙烯( st ) ?丙烯酸( aa )共聚物為高分子殼層,合成了表面帶羧基的磁性高分子復合微球,然後將這種微球用二氯亞碸進行活化處理,在其表面形成了反應性酰氯基團,該基團可以與游離酶的氨基形成肽鍵,從而將游離酶固定化。Based on the theoretical analysis and experimental researches, it is presented that the wider spectra are resulted from the many fluorophores with large numbers of vibrational energy levels on the ground level in the blood cells, and the reduction of the spectral intensity is due to the reabsorption of the blood cells and the energy transfer of the collisions between the fluorophore and another one or other macromolecule. on the other hand, when the concentration of the blood cells is increased, the reabsorption of the blood cells, the secondary fluorescence due to the reabsorption and the influence of the concentration on the energy levels of fluorophores are all the factors of the red - shifted spectral peaks
在進行理論分析和研究的基礎上,提出了因血細胞中存在多種熒光團,且這些熒光團的電子能級上又存在大量的不同的振動能級,從而導致被激發的熒光團發出較寬的熒光光譜;血細胞濃度的增大,熒光團以及其他大分子之間的距離變小,造成它們之間因碰撞的能量轉移概率加大,因而易產生熒光猝滅,結果導致熒光強度的變小;血細胞溶液中重吸收所導致的熒光猝滅和二次熒光發射,以及血細胞濃度的變化對其中熒光團能級系統的影響都是導致熒光峰值波長「紅移」的原因;進而研究了led光誘導血細胞產生熒光光譜的機理。So it has been found that this polymorphism of sod was changed under different experimental conditions, which showed that the polymorphism was not caused by the difference of genes or the difference of length or side groups of the peptide chains which was caused during the processing after transcript or the purification
由此排除了其是由不同基因編碼的同工酶或在轉錄后加工及分離純化過程中形成肽鏈長短不一和酶分子側鏈基團差異等微不均一性所造成的可能性。Wld is a high - temperature anti - sloughing agent, which contains si and organic compound ion. by applying it with polymer drilling fluid in the high - temperature deep well and the well section of heaving mud shale, it can improve the stability of drilling fluid dramatically. and at the same time, it can deactivate the drill cuttings and the wall surface active point to greatly improve the property of rejection and anti - sloughing of the drilling fluid through the physical - chemical action occurring between the special group of molecule vs. drill cuttings and the wall surface
Wld高溫防塌劑是一種含有si元素和有機復合離子的抗高溫防塌劑,在高溫深井及易垮塌的泥頁巖井段配合聚合物鉆井液使用,不僅可以顯著改善鉆井液的穩定性,而且可以利用分子中的特種基團與鉆屑和井壁表面發生物理-化學作用,使鉆屑和井壁表面活性點鈍化而顯著提高鉆井液的抑制防塌能力。It is the especial congregate structure of polymer matrix that is necessary for the forming of three - dimensional interpenetrate network between the polymer and copper. the mma unites lead to the advantage of improving fiexibity of the film, destroying the formal arrangement of macromolecule chain in polymer and decreasing the degree of crystallization. the ita unites help the solvolyzed copper ion transfer in the film and benefite the forming and establishment of the networks of polymer matrix
聚合物基體特殊的聚集態結構是互穿立體網路形成的必要條件,皿m的加入有利於破壞丙烯睹大分子鏈的規整性,使結晶度降低,提高聚合物的柔韌性,含親水基團的單體( ita 、 as )存在有利於降低離子遷移的界面能,提供溶劑化銅離子遷移的途徑以及聚合物基體網路結構的形成和穩定。Studied the pl molecular weight histidine of catalytic group of mlap and the influence of zn2 + ca2 + and edta to enzyme activity for validation the results of bioinformatics analysis and homology modeling. the cold - adaptation is validated by the catalysis of mlap
為了驗證堿性蛋白酶的生物信息學分析結果和模建的結果,我們對其等電點、分子量、催化性基團組氨酸以及鋅離子、鈣離子和edta的影響進行了實驗分析。分享友人