查询词典 acid-base

This paper proposes a method for the determination of 4-hydroxy-3-nitro-benzenearsonic acid and arsanilic acid in the nitration reaction product of arsanilic acid by ion-pair chromatography.

本文提出一种用于测定对氨基苯胂酸硝化反应产物中4-羟基-3-硝基苯胂酸及对氨基苯胂酸含量的离子对色谱法，选择甲醇：水=25：75作为流动相，0。

Objective To evaluate the biocompatibility of poly (lactic acid/glycolic acid/asparagic acid-co-polyethylene glycol) tri-block copolymer in vitro.

目的 对自主研制的三嵌段骨基质材料－聚丙交酯／乙交酯／天冬氨酸－聚乙二醇的体外生物相容性进行评价。

Objectives: To investigate the effects of adhesion and proliferation of bone mesenchymal stem cells in the surface of lactic acid/glycolic acid/asparagic acid-co-polyethylene glycol PLGA- tri-block polymer scaffolds, try to find a new biomaterial to induce seed cells in vitro for bone tissue engineering.

目的：探讨大鼠骨髓间充质干细胞BMSCs在聚丙交酯/乙交酯/天冬氨酸-聚乙二醇三嵌段多元共聚物 PLGA-表面粘附、增殖的情况，为组织工程学体外诱导种子细胞生长提供新的生物材料。

Objective To modify the surface of poly(lactic acid/glycolic acid/ asparagic acid-co-polyethylene glycol), using Gly-Arg-Gly-Asp-Ser-Pro-Cys peptide, and then test the cellular adhesion.

目的 用甘氨酸-精氨酸-甘氨酸-天冬氨酸-丝氨酸-脯氨酸-半胱氨酸对三嵌段髙分子骨组织工程支架材料进行表面修饰，并检测其细胞粘附性。

Several chemical modification agents were applied to investigate amino acid residues in active site of this enzyme and the results demonstrated that histidine, serine, glutamic acid/asparaginic acid are located in the active site.

随后利用不同的化学修饰剂对酶蛋白进行修饰，通过酶催化活力的改变对位于酶活性位的氨基酸残基进行分析，结果表明酶活性位可能含有组氨酸、丝氨酸和谷氨酸。

The composition of amino acid of the enzyme was also analyzed,which indicated that the contents of asparaginic acid, serine, glutamic acid, glycin, alanine are the most, lysine, histidine also have high contents and there are a few praline, tryptophan.

最后，对此酶的氨基酸成分进行了分析，结果表明，此酶分子中天冬氨酸、丝氨酸、谷氨酸、甘氨酸、丙氨酸含量高，两种碱性氨基酸精氨酸、赖氨酸及组氨酸的含量也比较高，而脯氨酸、色氨酸的含量相对较低。

Citric acid, as the electrolyte additive for lead-acid b attery, is considered to be favorable to improve the capacity of lead-acid batte ry according to the former studies.

在过去20a中，铅酸蓄电池由于其在汽车及其他能源领域的广泛应用而获得了很快的发展，其技术也得到了长足的进步。

Through this issue, we found that with 2% NaOH-NALC digested within 10 minutes in the rapid decomposition of the viscous sputum, in ensuring the effectiveness of digestion at the same time not too much because of the role of NaOH to kill bacteria (time to 20 minutes), and would not affect the role of magnetic particles; quantitative simulation of self-made through the application of clinical samples, we compared the acid-fast stain and auramine O staining of the detection limit, auramine O fluorescence staining against the backdrop of a clear dark green light acid-fast stain of Mycobacterium tuberculosis than the white background of the red eye-catching TB is more capacity, auramine O staining in the detection limit of 0.05 to 0.001 between Maxwell, higher than the acid-fast stain of Michael's 0.05 units, The former is more sensitive; In addition, the accumulation of magnetic nanoparticles of the samples after the smear, in the microscope show the number of TB was significantly higher than that of the specimens has not been enriched.

通过本次课题，我们发现用2%NaOH-NALC消化液可在10分钟内迅速裂解痰液的粘性介质，在保证消化效果的同时不会由于NaOH过强的作用杀死细菌（时间控制在20分钟内），亦不会影响磁性颗粒的作用；通过应用自制定量模拟临床标本，我们比较了抗酸染色和金胺O荧光染色的检出限，金胺O荧光染色黑暗背景下发出明显绿色亮光的结核杆菌较抗酸染色白色背景中的红色结核杆菌更容醒目，金胺O荧光染色的检出限在0.05~0.001个麦氏单位之间，高于抗酸染色的0.05个麦氏单位，前者敏感度较高；另外，经过磁性纳米颗粒富集作用后的标本涂片，在镜下显示其结核杆菌数量明显高于未经过富集的标本。

Such common ingredients are: Alpha Lipoic Acid Prevents cellular damage, reduces oxidative stress, lowers blood sugar Increases energy levels Powerful insulin potentiator Banana leaf extract Balances blood sugar levels Transports blood sugar into the cells and aids in controlling carbohydrate cravings Cayenne Raises the body's metabolic rate Citrus Aurantium A highly effective calorie and fat burner Helps to burn fat, and does not affect the central nervous system Increases energy levels CLA - Conjugated Linoleic Acid An important fatty acid that has been shown to reduce the body's ability to store fat and increase the body's use of fat for energy.

这种共同的成分是：阿尔法硫辛酸防止细胞损伤，可减少氧化应激，降低血糖上升能级强大胰岛素增效香蕉叶提取结余血糖运输机血糖进入细胞和艾滋病控制碳水化合物情怀卡宴提高人体的代谢率柑橘枳壳高效卡路里和脂肪燃烧有助脂肪燃烧，而且并不影响中枢神经系统增加能量水平CLA的共轭亚油酸重要脂肪酸已经初显成效，降低身体的免疫能力来储存脂肪，增加人体的使用脂肪作为能源。

Water,cetearyl alcohol,butylene glycol,ceteth-20,glycolic acid,cyclomethicone,citric acid,sodium hydroxide,xanthan gum,lactic acid,phenoxyethanol,sodium citrate,magnesium aluminium silicate,citrus aurantium dulcisoil,disodium edta,pentadecalactone,methylparaben,iris germanica root extract,butylparaben,ethylparaben,propylparaben,silica,chlorhexidine digluconate.citrus aurantium amaraoil,limonene,linalool

水， 棕榈醇，丁二醇，鲸蜡醇聚醚 20，甘醇酸，环甲硅脂，柠檬酸，氢氧化钠，山羊胶，乳酸，苯氧乙醇，柠檬酸钠，硅酸镁铝，甜橙油，乙酸乙二胺二钠，环十五内酯，羟苯甲酯，鸢尾花根萃取，羟苯丁酯，羟苯乙酯，羟苯丙酯，二氧化硅，洗必泰葡萄糖酸盐，苦橙油，柠檬精油，芳樟醇

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。