查询词典 oxalic

Influence of mashing water quality and processing methods on the oxalic acid in wort are discussed.

讨论了糖化用水的水质以及外加钙(Ca2+)、外加酸调节pH等水处理方式对麦汁中草酸含量的影响。

The comparison for advantages and application scopes of both methods were carried out. The results show that the former is quicker, but the adding amount of oxalic acid needs to be controled in the range of 1.2-1.7 times of theoretical value and the content of iron in the alloy is required to be below 0.5%. While the later is overelaborate, but it can completely separate magnesium from iron with sharp titration end point.

分析对比了两种方法的适用范围，结果表明，草酸分离稀土方法简便快速，但草酸用量需控制在理论用量的1.2~1.7倍，且合金中铁含量要求小于0.5%；氢氧化铵分离稀土方法分析流程比前者长，但可将主要干扰杂质铁分离完全，终点敏锐。

In this paper, high-level quantum chemistry calculation methods are used to theoretically investigate basic configuration, conformers, torsion potential energy surface and internal rotation transition state of oxalic acid and oxalyl halides.

第三章采用量子化学的MP2、B3LYP、HF计算方法在6-311++G~水平上，对草酸可能存在的十三种构型进行完全放开的全几何优化及振动频率分析，得到八种稳定构型和五种内转动过渡态构型。

Several types of ligand reactions observed under hydrothermal condition were summed up:(1) hydrolysis of pyridine nitrile, aldehyde and ester in mixed water and alcohol into pyridine-carboxylate;(2) replacement of carboxylate group with sulfonic group;(3) coupling of phenanthroline by dehydrogen;(4) oxidative coupling of methanol into oxalic acid;(5) hydroxylation of isophthalate.

总结了以往在水热条件下观察到的几类配体反应：（1）吡啶腈、醛和酯在醇和水混合溶液中水解成吡啶羧酸；（2）磺基取代羧基反应；（3）邻菲啰啉的脱氢的聚合：（4）甲醇被氧化偶合生成草酸：（5）间苯二甲酸的羟基化反应。

M treatment materials, and also tartaric acid and no maleic acid detected in G. v treatment materials. Inoculation also increased the content of organic acid secretion (increased by 19.80～56.87 mg/kg) of trifoliate root, and the application of AlPO4 greatly increased organic acid content (increased by 20.06～21.84 mg/kg); uninoculated plant root secreted a bit of organic acid; Mycorrhizal poncirus trifoliata seedlings excreted malic acid (42.87%), citric acid (39.22%) and oxalic acid (12.06%).

接种AM真菌的根系分泌的有机酸种类与对照有所不同，未接种处理枳分泌的有机酸有草酸、苹果酸、乳酸、乙酸、顺丁烯二酸和柠檬酸等6种，而接种G.m的则检测到草酸、酒石酸、苹果酸、乳酸、乙酸、柠檬酸、丁二酸等7种，G.v处理的检测到酒石酸，接种处理均未检测到顺丁烯二酸；接种丛枝菌根真菌增加了枳根系分泌有机酸的量比未接种处理增加19.80～56.87 mg/kg，且施用AlPO4后有机酸含量显著增加(增加20.06～21.84 mg/kg；未接种植株根系仅分泌少量有机酸；接种植株根系分泌的有机酸以苹果酸(42.87%)、柠檬酸(39.22%)和草酸(12.06%)为主。

High performance liquid chromatographyanalysis showed the mango fruit of these two cultivars contained 3 carbohydrates, 11 organic acids and 4 carotenoids. The carbohydrates were composed of fructose, glucose and sucrose; the organic acids were oxalic acid, tartaric acid, quinin acid, malic acid, ascorbic acid, lactic acid,α-ketoglutaric acid, citric acid, fumaric acid, succinic acid and gallic acid; the carotenoids were violaxanthin,β-carotene, lutein, lycopene.

高效液相色谱分析表明，芒果果实共含3种糖、11种有机酸和4种类胡萝卜素，即果糖、葡萄糖和蔗糖；草酸、酒石酸、奎尼酸、苹果酸、抗坏血酸、乳酸、α-酮戊二酸、柠檬酸、富马酸、琥珀酸和没食子酸；堇菜黄素、β-胡萝卜素、叶黄素和番茄红素。

A new method for synthesis of rosolic acid is introduced in this thesis: under solvent-free conditions, grinding the mixture containing phenol, oxalic acid and copper salt catalyst and then irradiated by MW to produce rosolic acid .

本文主要介绍了一种新的制取玫红酸的方法：在无溶剂的条件下，通过研磨将苯酚，草酸和催化剂混合均匀，再由微波作用，直接合成玫红酸。

Both Sclerotinia resistance and oxalic acid tolerance were significantly increased in senescence leaves of T1 lines.

转基因植株叶片尤其是衰老叶片对核盘菌的抗性及对草酸毒素的耐性均得到了增强。

It was showed that the growth speed of hypha, sclerotinia production and the pathogenicity of strains had little relation with host and geographical location. The ability of oxalic acid production of strains had positive relation with the pathogenicity. In order to study the nutrition aptness, 8 kinds of culture mediums were tested and the result showed that S.

sclerotinia不同菌株菌丝的生长速度、菌核产量、致病力与其地理来源和寄主来源关系不大，对12个代表菌株的草酸产生能力的测定表明，菌株的草酸产生能力和病菌的致病性基本呈正相关，致病力较强的菌株草酸产生能力较强；采用8种培养基对代表菌株营养条件进行了研究，结果表明核盘菌S。

This is a new way for comprehensive utilization of waste fat and oil. The dropping points of lithium grease and lithium-calcium complex grease can be improved through adding the complex additives. Oxalic acid and sebacic acid are effective on lithium grease' and lithium-calcium complex grease' respe...

采用加入复合剂提高锂基润滑脂和锂-钙基润滑脂的滴点，加入草酸复合剂对所制备的锂基润滑脂的滴点的提高最为有效，加入癸二酸复合剂对锂-钙基润滑脂的滴点提高效果最好。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。