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Therefore, the signal of analyte could not be suppressed when using ammonium phosphate in CE/MS.

在酸性条件下,电渗流的速度降到相当低,因此缓冲溶液中的磷酸根阴离子流入质谱的量是非常少的,所以使用磷酸铵的缓冲溶液,并不会严重影响分析物的质谱讯号。

Deduction of the relationship between the boundary of buffer and Minkovski curve. A concept --- buffer curve --- is concluded from Minkovski curve and provide a way to unify the creation of all types of buffer on the same theoretical base.

12,导出缓冲区的边界和Minkovski曲线之间的关系,并从Minkovski曲线简化归纳出缓冲曲线的概念,将所有的缓冲区,包括单侧,双侧缓冲区的生成都统一建立在缓冲曲线的基础上。

The bonds of communist solidarity may have faded since Mao Zedong sent hundreds of thousands of soldiers to fight US-led UN forces during the Korean war—but North Korea remains a buffer state, the loss of which could result in a united, US-allied Korean peninsula.

自韩战时期,毛泽东派出成千上万的远征军对抗以美国为代表的联合国部队后,共产联盟的团结性就慢慢的消退。但朝鲜仍是一个缓冲带。失去了此一缓冲带将会导致一个统一的,和美国友好的韩国半岛。

The influences of different surfactants (sodium dodecyl sulfate, sodium cholate and sodium deoxycholate), different electrolytes (sodium phosphate monobasic, sodium tetraborate and 3-cyclohexylamino-1-propane sulfonic acid), buffer pH and organic modifiers on the determination of sialic acid were studied.

其次建立了一种测定唾液酸的在线富集CZE法,该方法用40 mM磷酸二氢钠为缓冲溶液电解质,通过将样品溶解在乙腈:水=2:1的样品基体中,进样时间增加到100 s来达到样品富集的效果,并考察了样品基体中乙腈浓度和进样时间对富集效果的影响,研究了用硼砂或3-环己胺-1-丙烷磺酸作为电解质、缓冲溶液pH值和有机修饰剂的加入对唾液酸检测的影响。

The principal of buffer is described as follows.At impulsing down,the piston moves down and vacates the annular space.The pressure in respiratory cavity decreases to a certain level and the traveling valve opens.At that time,the liquids enter into traveling valve and cavity and the plunger is impulsed upward to carry out the gentle transient at the sudden change.When the upward impulsing begins,the respiratory cavity is subjected to pressure and the traveling valve closes.During the gradual pressure rising,the liquids in respiratory cavity effuse from the upper ventage and the sudden change of force-summing direction of plunger is relieved relying on the resistance of ventage.

其原理大致是:下冲程时,活塞向下运动,让出环形空间的体积,呼吸腔内压力下降,下降到一定水平后,游动阀打开,此时,游动阀和小孔同时进液,使柱塞在从上死点处突然改变方向向上运动时得到缓冲,实现了柔和过渡;当上冲程开始时,呼吸腔受压,游动阀关闭,在压力逐渐上升的过程中,呼吸腔内的液体从上部的小孔流出,并依靠小孔的阻力使柱塞受力突然换向得到缓冲。

Influence of pH of buffer, the temperature, time of hydrothermal treatment on yield of free oil and the quantity of the soluble mass extracted in the buffer and the law of changing of the composition of components in the enzyme hydrolysis system with the pH of buffer, the temperature, time of HTT were studied.

首先优化热处理工艺,考察浸泡液的pH值、热处理时间及热处理温度对清油提取率及缓冲液中可溶性固形物溶出量的影响,同时分析酶解体系各部分组成随缓冲液的pH值、热处理时间及热处理温度的变化规律,为探索水酶法提油工艺的机理创造条件。

A new procedure for virus concentration from water samples has been developed. This method called calcium flocculation-citrate buffer method involves virus flocculation formed by 1 mol/L Ca2+ solution and its flocculating agent, virus release with sodium citrate dissolution (0.3 mol/L, pH5.0), and virus reconcentration by ultrafiltration.

研究建立了一种从水体中浓缩病毒的新方法,即钙离子絮凝-柠檬酸缓冲液洗溶法,该方法的要点是先用一定量的钙离子溶液和钙离子絮凝剂絮凝水体中的病毒,再用pH 5.0的0.3 mol/L的柠檬酸缓冲液洗溶,然后再进一步超滤浓缩。

This high-speed element is used as a "scratch pad" to temporarily store data and instructions that are likely to be retrieved many times during processing.Processing speed can thus be improved.Data may be transferred automatically between the buffer and primary storage so that the buffer is usually invisible to the application programmer.Once found only in large systems,cache memory is now avaliable in some of the tiny microprocessor chips used in personal computers.

该高速存储器可用作"便笺",暂时存放那些在处理中很可能多次查询的数据和指令,这样可提高处理速度,由于数据在这个高速缓冲器和主存之间可自动传输,所以该告诉缓冲存储器对应用程序员来讲通常是不可见的,过去只在较大的计算机系统中才有的高速缓冲存储器,现在在一些用于个人计算机系统的很小的微处理器芯片中也采用了。

The effects of organic modifier concentration, pH value of buffer, salt concentration of buffer and column temperature on the recognition of YPLG and YPGL were investigated.

实验中系统地研究了流动相中有机溶剂的含量、缓冲溶液的pH值、缓冲溶液的盐浓度以及柱温对四肽识别的影响。

Mechanical principle and design tenet of sandwich Beams for Buffer and damping is discussed by use of analyzing stresses, strain, deformation, strength and energy storing in a cantilever sandwich beam.

通过分析悬臂夹芯梁在冲击力P作用下的应力、变形、强度和储能原理,讨论了夹芯梁用于缓冲和减振的力学原理和设计原则;给出了夹芯梁用于缓冲减振时,蒙皮与芯层尺寸的选择和材料特性选择的原理和方法。

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My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

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