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- A buffer system resists a change in pH. 缓冲系统对pH的变化是有耐受能力的。
- The chief type of acid base unbalance is respiratory acidosis. 酸碱失衡类型中 ,呼吸性酸中毒占首位 ;
- Potassium has an important role in the regulation of acid base balance. 钾在人体的酸碱平衡中起到了重要的作用。
- A linear rolling guider and imported buffer system guarantees the excellent finish and concentricity. 本设备选用滚珠导轨与进口稳速系统以保证精密的表面光洁度和同心度。
- Redox system can be also used as a buffer system for indirect determination of different components by FIA. 在前文工作的基础上,对氧化还原缓冲体系用于FIA的电势检测进行了研究。
- The acid base properties of fluorosilicone rubber(FSR) were studied by inverse gas chromatography(IGC) in detail. 采用反相气相色谱法对氟硅橡胶表面的酸碱性质进行表征。
- The target tripeptide was synthesized in ethanol/ This-HCl buffer system with Bz-Arg-OEt as acyl donor and Gly-Asp-(NH2)2 as the nucleophile. 然后以Bz-Arg-OEt为酰基供体,以Gly-Asp-(NH2)2为亲核试剂,在乙醇/Tris-HCI反应体系中,用胰蛋白酶作催化剂催化合成了目标三肽。在试验中我们发现经过pH处理过的胰蛋白酶与酶粉作为催化剂相比具有的催化活力更高,产物产率好的优点。
- In this paper,the reaction rule of diketen reacting with different alcohols under acid base catalysis was investigated. 研究了二聚乙烯酮与不同结构的醇在酸、碱催化下的反应规律,并用烷基电子效应的新观点解释了这个规律。
- Conseqently, the IGC is a simply &quick way of measuring the acid base property of polymers. 采用反相气相色谱法对氟硅橡胶表面的酸碱性质进行表征。
- With regard to the network bandwidth and efficiency problem of centralized data management, a distributed file buffer system based on synchronization engine was brought forward. 摘要针对集中式数据管理的网络带宽和运行效率问题,提出了基于同步引擎的分布式文件缓存系统。
- The common glass bottles pose a risk of eluting sodium and the other elements contained in glass material under acid base condition. 一般常见之玻璃瓶在酸或硷性的情形下会有钠或其他元素溶离出来之缺点。
- Results 83 cases (96.51%) had acid base disturbance,in which the metabolic acidosis with respiratory acidosis was most common (61.63%). 结果 83例 ( 96 5 1%25 )存在酸碱紊乱 ,其中以代谢性酸中毒合并呼吸性酸中毒为最多见 ( 6 1 6 3%25 )。
- Method: The content of SD was measured by acid base titrations and trimethoprim (TMP) was determined by ultraviolet spectrophotometer. 方法:用酸碱滴定法测定磺胺嘧啶的含量,用紫外分光光度法测定甲氧苄啶的含量。
- To investigate the effect of interval hypoxic training(IHT) on aerobic capacity and Acid base balance metabalism by testing of blood gas analysis. 目的是通过实验对大鼠血气分析指标进行测试,进一步研究间歇性低氧训练对有氧代谢能力和酸碱平衡代谢作用的机理。
- Methods:The assay was based on precolumn derivatization of cystine(Cys)with 2,4-dinitrofluorobenzen(DNFB) in the phosphate buffer system(pH9.5),the quantitative analysis was performed with external standard under the optimal conditions. 方法:在碱性条件下;2;4-二硝基氟苯(DNFB)与胱氨酸反应生成 DNFB 氨基酸衍生物;在四硼酸钠缓冲液(pH 9.;8)中电泳分离;电压28kV;检测波长340nm。
- Eight kinds of probe molecules have been selected to indicate acid base property of hydroxy terminated fluorosilicone oil by inverse gas chromatography(IGC). 采用 I G C法,选择8 种已知酸碱性的探针分子 ,表征羟基氟硅油的酸?碱性质。
- Conveyors &Buffering system: Offer every type for all PCB production line. 传送装置及暂存系统:可提供所有PCB生产线所需的机种。
- The variation of the desorption activation energy of dichloromethane on activated carbons was discussed with the help of the hard soft acid base(HSAB) princi. 主要研究了金属离子改性活性炭对二氯甲烷脱附活化能的影响。
- In biochemistry, the main buffer systems are the phosphate (H2PO4-/HPO42-) and the carbonate (H2CO3/HCO3-) systems. 在生物化学上,主要的缓冲系统是磷酸盐(H2PO4-/HPO42-)和碳酸盐(H2CO3/HCO3-)缓冲系统。