查询词典 amino-aciduria

The new synthetic technology of some important anthraquinone intermediates derived from 1-amino- anthraquinone, l-amino-4-hydroxy-anthraquinone, l-amino-4-bromo- anthraquinone-2-sulfonic acid, 1,5- and 1,8 dinitro- anthraquinone, have been studied.

本文研究了几种重要的由1-氨基蒽醌衍生的蒽醌型中间体：1-氨基-4-羟基蒽醌、1-氨基-4-溴蒽醌-2-磺酸和1，5-及1，8-二硝基蒽醌的合成化学，在此基础上开发了上述中间体的合成新技术。现行1-氨基-4-羟基蒽醌的生产技术是从1-氨基蒽醌出发，经二溴化再水解制得，溴的耗量在1.5mol以上。

Based on this result, a new technology is suggested, that is by regulating the effective sulphonating contents of 1-amino-anthraquinone, adjusting the concentration of sulfuric acid to hydrolyze 1-amino-anthraquinone disulfonic acid conversing to 1-amino-anthraquinone -2-sulfonic acid, and briminating the hydrolyzed product in 100% sulfuric acid, 87% yield of Bromamino-acid was achieved, 10% higher than the conventional method prepared by "oleum method".

此新工艺，溴氨酸在产物中含量可达87％，比常规的发烟硫酸法生产溴氨酸提高了10％，质量和收率都接近或达到溶剂法生产的水平。 1，5-二硝基蒽醌和1，8-二硝基蒽醌是生产分散蓝56、分散蓝73等一系列分散染料重要中间体。

In this chapter, A〓 is divinyl sulfone, B〓 organic molecules with two secondary-amino groups, BB'〓 organic molecules with one secondary-amino group and one primary-amino group.

提出了一种由已商品化的A〓、B〓和BB'〓型单体合成高度支化共聚物的新方法，并合成了六种新型高度支化共聚砜胺。

With the increase of excitory amino acids after cebral ischemia, the concentration of inhibitory acids such as γ-amino acid has been also increased to resist the toxicity of the excitory amino acids .

研究发现脑缺血后，伴随着兴奋性氨基酸的释放增加，脑内抑制性氨基酸如γ-氨基丁酸的浓度也升高，以拮抗兴奋性氨基酸的毒性作用。

Total amino acid,essential amino acid and flavorous amino acid contents were 776.4,302.4,311.7 mg/g,respectively,for S.chuatsi and 812.9,317.9,324.9 mg/g for S.scherzeri.

从氨基酸组成来看，每g翘嘴鳜肌肉干样的氨基酸总量为776.4 mg，必需氨基酸总量为302.4 mg，4种呈味氨基酸的总量为311.7 mg；而每g斑鳜肌肉干重的3者含量分别为812.9，317.9，324.9 mg。

The sequence of amino acid of clone CR271 was highly homologic (61% identify and 76% similarity) to blight resistance gene Xal of rice to Xanthomonas oryzae pv. Oryzae. All other fragments showed significantly amino acidhomology to the NBS-LRR type resistance gene that have been cloned. The length of JR2 and JR3 fragments were 1321bp and 896bp respectively, which did not showed significantly homology on the level of amino acid and nucleotide acid to the sequences that have been known.

其中CR271与水稻白叶枯病抗病基因Xa1(AB002266)氨基酸同源性有61％相同，76％相似，其它片段与已克隆的NBS-LRR类抗病基因同源片段都具有较高的同源性；所获得的右翼序列JR2DNA片段长为1321bp，JR3DNA片段长为896bp，此两片段在核苷酸水平及氨基酸水平上均未找到有显著同源的序列。

After extraction by ethanol and purification by cationic ion-exchange column, a method of using reversed-phase high-performance liquid chromatography and precolumn derivatization with o-phthalaldehyde and 9-fiuorenylmethylchloroformate is employed for determination of free amino acids in tobacco . This method assures that amino acids with amino and imino groups can be determined simultaneously. The results of duplication experiment and recovery experiment are acceptable.

本试验用乙醇提取烟叶中的游离氨基酸，并用阳离子交换树脂纯化，再用邻苯二甲醛、氯甲酸芴甲酯联合柱前衍生、反相高效液相色谱分析测定了烟叶中的游离氨基酸，该方法能同时测定烟叶中的带氨基和亚氨基基团的氨基酸，并且分析方法的重现性和回收率均令人满意。

Methods:The SD rats were each given a catheterization of jejunostomy and an inoculation of Walker-256 carcinosarcoma cells subcutaneously. Thirty-six rats were randomized into 3 groups: Group A (balance amino acid＋NS), Group B (balance amino acid ＋5-Fu), Group C (complex amino acids of arginine-enriched and leucine-enriched＋5-Fu).

SD大鼠空肠造瘘，皮下接种Walker-256癌肉瘤，36只接种成功之大鼠随机分为A组、B组(平衡氨基酸+ 5-Fu组)、C组(富含亮氨酸及精氨酸的不平衡氨基酸+ 5-Fu组)。

N-(6-methyl-2-pyridine)-amino-methylene-diethyl malonate was produced by condensation reaction of 2-amino-6-methyl pyridine with ethoxymethylene diethyl malonate under optimal conditions that n(2-amino-6-methyl pyridine)∶n(ethoxymethylene diethyl malonate) is 1∶1.3, reacting time 45 min and temperature 130 ℃,the yield of this reaction was 96%,which was 6% higher than that of literature.

在250℃的反应温度下，分别以二苯醚、石蜡油和邻苯二甲酸二乙酯为热载体进行成环反应，得到4-氧-7-甲基-1，8-萘啶-3-羧酸乙酯的收率分别为88.6%、56.3%和61.2%，确定二苯醚为最佳热载体，并发现反应温度对产率的影响最大，原料配比次之，反应时间基本无影响。

Three part of research works had been carried out in the dissertation. The first part: a kind of multidentate amine modified silica gel was synthesized through the following steps:(1) introduce the amino groups onto the surface of silica-gel by the treatment of surface silanol groups withγ-aminopropyl trimethoxy silane;(2) michael addition of excess trihydroxymethyl propyl triacrylate to amino groups on the silica gel surface;(3) amidation of the unreacted double bonds of TMPTA on the surface of TMPTA modified silica gel with diethylenetriamine;(4) the multidentate amine modified silica gel was finally obtained by the reaction of amino groups on the surface of DETA modified silica gel with double bond of butyl acrylate.

本论文进行了三部分研究工作，第一部分：通过多步反应对硅胶进行改性合成了一种多齿胺改性硅胶配体，合成过程如下：1通过γ-氨丙基三甲氧基硅烷与硅胶表面的硅羟基反应，使硅胶表面带有氨基；2利用硅胶表面氨基与过量的三羟甲基丙烷三丙烯酸酯发生Michael加成反应；3利用二乙烯三胺与TMPTA改性硅胶表面未反应的双键发生反应使硅胶表面氨基化；4最后用丙烯酸正丁酯与DETA改性硅胶表面氨基充分反应成功合多齿胺改性硅胶配体。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新