查询词典 oleanolic acid

The methods of preserving eleostearic acid were studied, adopting content of eleostearic acid as index. Eleostearic acid was esterificated with BF3 in methanol. The content of eleostearic acid was determined by gas chromatography, and the structure is studied by infrared spectroscopy.

初步研究了桐油酸的保存方法，以α-桐油酸含量为指标，将桐油酸与三氟化硼－甲醇溶液进行甲醋化，采用气相色语法检测桐油酸含量，并用红外光语扫描结构。

When a lack of folic acid, some amino acids in each variable delay so that the formation of red blood cells in the process of nucleic acid synthesis of obstacles, red blood cell development and maturation blocked, causing giant erythroblastic anemia, folic acid can be used at this time for treatment, so folic acid also called the anti-anemia vitamin.

当叶酸缺乏时，某些氨基酸的互变受阻，使红血球形成过程中的核酸合成障碍，红血球的发育和成熟受阻，引起巨幼红细胞性贫血，这时可以用叶酸进行治疗，故叶酸也叫抗贫血维生素。

A new corrosion-scale inhibitor composed of citric acid/hydroxy ethylidene diphosphonic acid/polyitaconic acid-styrene sulfonic acid copolymer exhibited a good inhibition efficiency on corrosion and scale-forming, it can be used in circulating cooling water systems.

新型缓蚀阻垢剂柠檬酸/羟基乙叉二膦酸／聚衣康酸-苯乙烯磺酸有优良的抗腐蚀性能和阻垢性能，可用于循环冷却水系统。

Thiol groups were good to be used in functionalizing gold nanoparticles, and ester bond formation and breakage played the major role in this research. Thioctic acid and 11-mercapto-1-undecanol were used to functionalize the gold nanoparticles and form ester bond by using the carboxylic acid group on thioctic acid and the hydroxyl group on 11-mercapto-1-undecanol. Concentrated sulfuric acid was used to be the catalyst in this reaction, and sodium hydroxide was added for the proceeding of the reverse reaction.

硫醇官能基在金奈米粒子的修饰有很好的效果，利用带有硫醇官能基之tioctic acid 与11-mercapto-1-undecanol (11-MUDO)分子修饰在金奈米粒子上，并使TA上之羧基和11-MUDO上之羟基脱水生成酯化键，浓硫酸则是反应中的催化剂，而氢氧化钠则可促使系统进行逆反应。

The solid-phase microextraction technique was evaluated for the determination of furoic acid and creatinine in urine. For furoic acid, the alkaline hydrolysis step was first performed to hydrolyze the furoic acid-glycine conjugate to free furoic acid.

本研究利用固相微萃取(solid-phase microextraction， SPME)动与气相层析质谱仪之结合，建立尿中呋喃甲酸与肌酸酊的分析技术，以提供评估呋喃甲醛暴露之生物侦测工具。

The reaction of 4-bromaophenol and geranic acid in the presecnce of p-TsOH afforded 4-bromophenolα-cyclogeranoate in which cyclization of geranic acid toα-cyclogeranic acid was followed by esterification ofα-cyclogeranic acid with p-bromophenol.

对溴苯酚与香叶酸在p-TsOH催化作用下发生了香叶酸向α-环香叶酸环化、α-环香叶酸环与对溴苯酚的酯化，得到了唯一产物α-环香叶酸对溴苯酯，产率68%。

They speak of its therapeutic effectiveness as based on gluconic acid, glucuronic acid, L-lactic acid and acetic acid, as well as the life-supporting vitamins C and the B-group.

他们谈到它的治疗作用是根据葡萄糖酸，葡萄糖醛酸， L-乳酸和醋酸及生命支持物维生素C和B-族。

The results manifest that the concentration of glycocholic acid has satisfactory linear correlation whith peak area, regression equation: Y= 39579X + 57823,R2=0.9984;The lowest detected concentration is 0.02μg/mL with S/N=3 ; Average recovery rate is 98.49%; RSD为0.52%～2.00%in day, RSD为0.74%～4.98%between days;The average recovery rate is 99.35%, RSD is 2.24% in the first team, and it is 100.87%, RSD is 4.73% in the second team at the stability test. When the concentration of glycocholic acid was detected in the liver, kidney and brain tissue, corresponding tissue concentration was calculated by preparing the standard curve with the glycocholic acid standard preparation in vitro, but the result can only reflect the relative chang law of the concentration of glycocholic acid in tissue but not in real tissue. The result of tissue stability experiment is consistent with that of the serum experiment.

结果表明，在0.15625～10.0μg/ml范围内血清中甘氨胆酸浓度与峰面积呈良好的线性关系，回归方程Y= 39579X + 57823，R2=0.9984；以信噪比S/N=3为标准，最低检测浓度为0.02μg/ml；平均回收率为98.49%；日内RSD为0.52%～2.00%，日间RSD为0.74%～4.98%；稳定性试验第一组的平均含量为99.35%，RSD为2.24%，第二组的平均含量为100.87%，RSD为4.73%；测定了肝、肾、脑组织中甘氨胆酸含量，采用体外甘氨胆酸标准品制备标准曲线的方法计算了相应的组织浓度，其结果仅反映组织中甘氨胆酸浓度的相对变化规律，不能体现真正的组织浓度值，但对组织样品的稳定性进行了较细致的考察，其结果和血样结果基本一致。

The markedly different metabolites between patients and healthy controls were Glycodeoxycholic acid, glycochenodeoxycholic acid, glycocholic acid, and glycoursodeoxycholic acid differentiated with mass-spectrometry according to their molecular masses.

经分子量测定、数据库筛查及统计学处理后，患者与健康对照组之间差异最大的胆汁酸代谢产物为甘氨结合脱氧胆酸、甘氨结合鹅脱氧胆氧、甘氨胆酸及甘氨熊脱氧胆酸，并在患者组明显增加。

The distribution coefficient of oxalic acid was larger than that of glyoxylic acid,and both of them decreased with the pH. The selectivity of oxalic acid to glyoxylic acid also decreased with pH.

在本实验的条件范围内，草酸的分配系数较乙醛酸大，且随溶液pH值的增大而下降，草酸对乙醛酸的分离系数随pH值的增大而减小。

We stopped by the old fashion ice cream parlor Manhattan Beach Creamery for some refreshment. The "No Shoes, No Shirt, No Problem" sign on the wall epitomizes the beach lifestyle.

我们去商店区的一家老式冰淇淋店坐坐，墙上挂著「没鞋，没上衣，没问题」的牌子完全捕捉了海滩生活的随性及风格。

"If therefore", argues Bellarmine we can offer our prayers and our satisfactions in behalf of those detained in purgatory, because we are members of the great body of Christ, why may not the Vicar of Christ apply to the same souls the superabundant satisfaction of Christ and his saints--of which he is the dispenser?

" "因此，如果"，认为贝拉明（德indulgentiis ，十四）"我们可以提供我们的祈祷和我们满意的代表那些被拘留在炼狱，因为我们是成员的伟大基督的奥体，为什麼可能不是牧师基督适用於同样的灵魂满意的过剩是耶稣和他的圣人-他是在配药？