二酸
- 与 二酸 相关的网络例句 [注:此内容来源于网络,仅供参考]
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DBP and DEHP have the similar photodegradation mechanism. The predominant pathway for DBP and DEHP photodegradation in the Fe -oxalate complexes system is hydroxyl radical extracting H atom in α-position of the aliphatic chain close to the carboxyl group followed by oxidation to produce alcoholized derivatives ROH. ROH then breaks down to phthalic acid and dialcohol that will be further oxidized up to mineralization.
DBP和DEHP的光降解历程相似,主要反应途径是OH自由基提取烷基上与羧基相连的α-H原子,然后被氧化生成醇衍生物,再分解成为酞酸和二醇,酞酸经历开环和进一步脱羧,二醇可以被氧化成为低级烷基羧酸,直至矿化。
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In the high alumina cement , dicalcium aluminate silicate is transformed into Q phase.
将高铝水泥中的惰性成分硅铝酸二钙(C2AS)转化为水化活性良好的Q相,组成Q相铝酸一钙七铝酸十二钙(C12A7)高铝水泥系统,对此系统的烧成条件进行研究。
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The protic- or Lewis acid catalyzed ring-closure of divinyl ketones (and their acid-labile precursors) pentadienylic cations is known as the via Nazarov cyclization.
质子酸或路易斯酸通过戊二烯基阳离子催化二乙烯酮的环闭合(以及它们的酸不稳定前体)这个反应被称为Nazarov环化。
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At first, Polyaniline was synthesized by the improved chemical oxidation technique, then, PANI/HCl, PANI/TSA and PANI/DBSA were obtained by doping emeraldine with HCl, 4-methyl benzene sulfonic acid and dodecylbenzene sulfonate acid, separately. Leucoemeraldine was obtained in the N-dimethylformamide by using phenylhydrazine deoxidizing emeraldine in N_2 atmosphere.
本文首先通过改进合成条件的化学氧化法合成了聚苯胺,经氨水脱掺杂获得本征态聚苯胺,再经盐酸、对甲苯磺酸、和十二烷基苯磺酸掺杂,分别获得到质子酸掺杂的聚苯胺样品,然后在N,N-二甲基甲酰胺中,利用苯肼,在N_2氛围下还原本征态聚苯胺得到还原态的聚苯胺。
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By means of GPC,IR,GC-MS,~(13)CNMR,~1HNMR,Methylation analysisetc,structural properties of PST-1 were identified as follows:The Mwof PST-1 was 3.44×10~6 Da and its optical rotation was _D~(20)=+0.110°(c0.1, H_2O); PST-1 constituted 8 simple sugars and the molar ratio was 2,4-Dimethoxy-Mannose:Rhamnose:Ara-binose:Xylose:Galactose:D-Galacturonic acid:Mannose:D-glucuronic acid=2%:5%:24%:9%:3%:1%:46%:10%;The chief bone of PST-1 was 1,3,6-linked-β-D-Man residue and the side chains contained Furanoid and Pyranoid residues.
结合GPC、旋光度测定、IR、GC-MS、~(13)CNMR、~1HNMR、高碘酸氧化法、Smith降解以及甲基化方法等分析测试方法,得到PST-1的单糖组成及结构表征,实验结果如下:红豆杉多糖PST-1是重均分子量为3.44×10~6 Da的支链多糖,旋光度为20D=+0.110~0(c0.1,H_2O);PST-1单糖组成为:2,4-Dimethoxy-Mannose:Rhamnose:Arabinose:Xylose:Galactose:D-Galacturonic acid:Mannose:D-glucuronic acid=2%:5%:24%:9%:3%:1%:46%:10%;PST-1的骨架结构为:具有1,3,6-连接的β-D-甘露糖残基骨架,侧链分枝包括非还原末端的呋喃型α-L-阿拉伯糖残基、吡喃型α-L-阿拉伯糖残基、β-D-木糖残基、β-D-甘露糖残基、2,4-二氧甲基-β-D-甘露糖残基和α-D-葡萄糖醛酸残基;侧链的糖残基也可能存在2,5-二氧-取代呋喃型α-L-阿拉伯糖基、3-氧-取代的β-D-木糖残基、6-氧-取代的α-D-半乳糖醛酸残基、6-氧-取代的α-D-半乳糖残基、4-氧-取代的α-D-葡萄糖醛酸残基和2-氧-取代的α-L-鼠李糖残基,同时后者也可能穿插在主链上。
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ConclusionThe main components of essential oils are 2,4-bis(1,1-dimethylethyl) phenol (4.4%), tetradecanoic acid (6.96%), n-hexadecanoic acid (7.69%), 9,12-cctadecadienoic acid (6.37%), hexadecanoic acid-2-hydroxy-1- ethyl ester (4.79%) and octadecanoic acid-2-hydroxy-1- ethyl ester (4.77%), respectively.
结论阿给炭挥发油的主要成分为2,4-二树丁基苯酚(4.4%)、十四酸(6.96%)、n-十六酸(7.69%)、-9,12-十八碳二烯酸(6.37%)、软脂酸-2-羟基-1-羟甲基乙酯(4.79%)、硬脂酸-2-羟基-1-羟甲基乙酯(4.77%)。
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Prophenoloxidase is a key enzyme for mediating melanotic encapsulation of oocysts,which may be transformed into active phenoloxidase by limiting proteolysis.
而前酚氧化酶(Prophenoloxidase,PPO)是介导卵囊黑化包被反应的一种关键酶,活化后可催化酪氨酸羟基化为二羟基苯基丙氨酸,二羟基苯基丙氨酸和多巴胺可进一步氧化为具有活性的苯醌活性,苯醌即可介导蛋白交联并聚合成黑色素层固定、隔离或杀死入侵的病原体。
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The combination of chemicals includes a catalyst, such as, dibutyl tin dilaurate; carboxylic or sulfonic acid; and an extender compound, such as 2,4 pentanedione.
该化学试剂混合物包括催化剂,如二月桂酸二丁基锡;羧酸或磺酸;和增量化合物,如2,4-戊二酮。
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Monolayer.2. A Novel Sensor Based on Layer-by-Layer Hybridized Phosphomolybdate and Poly on a Cysteamine Modified Gold ElectrodeA novel sensor have been constructed by layer-by-layer hybridizing phosphomolybdate and poly on a cysteamine modified gold electrode.
磷钼杂多酸和聚二茂铁硅烷多层组装膜修饰电极及其电化学行为采用层层组装法在金电极上组装多金属氧酸盐阴离子和聚阳离子聚二茂铁硅烷,交替沉积多层膜,构建了杂多酸-PFS多层膜修饰的金电极。
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Our data are showed that apoptosis parameters including DNA fragmentation, nuclear morphological change and sub-G1 fraction, appeared after 24 h by 5 μM rottlerin treatment. Furthermore, rottlerin caused a decrease in 72% of ODC protein expression and an increase in threonine, rather than serine and tyrosine dephosphorylation on ODC enzyme compared with the control after incubation for 10 h. To determine whether ODC could down-regulate rottlerin-induced apoptosis, HL60 cells were stably transfected with ODC cDNA. HL60-ODC cells exhibited a 2.5-fold increase in ODC protein compared with vector only (HL60-pcDNA3) or HL60 cells.
在我们筛选天然化合物实验中,发现rottlerin抑制鸟胺酸去羧化活性最具成效,之前的研究人员已知蛋白激Cd调节鸟胺酸去羧化的活性,因此在人类白血病HL60细胞处理rottlerin的实验中发现加入rottlerin二十四小时后,细胞进行计划性死亡,并可侦测到DNA片段、细胞核浓缩及sub-G1提增;而细胞处理药物十小时后与控制组细胞比较,观察到鸟胺酸去羧化的蛋白表现与活性下降50﹪以上;除此以外,测定鸟胺酸去羧化去磷酸化的情况,发现於酥胺酸位置有显著差异,而丝胺酸和酪胺酸位置并无差异。
- 推荐网络例句
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Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".
歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。
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This is Kate, and that's Erin.
这是凯特,那个是爱朗。
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Articulate the aims, objectives and key aspects of a strategic business plan.
明确的宗旨,目标和重点战略业务计划。