解酸的

The determination of acidic dissociation constant s by electric potential titration involves complicated calculation.

酸解离常数是各种弱酸重要的物理常数，用电位法测定酸解离常数通常需要涉及到繁琐的数学计算，将Bjerrum生成函数变形，通过建立线性方程组的方法是计算多元酸解离常数的常用方法。

Spraying with chitosan of different concentration significantly increased the content of chlorophyll ,anthoxanthin ,chlorogentic acid, polyphenal ,soluble protein and total soluble sugar of Broccoli flowers. 40 mg L-l chitosan showed the most remarkable effet,compared to control, the content of chlorophyll ,anthoxanthin ,chlorogentic acid, total soluble sugar and soluble protein of treated Broccoli flowers increased by 64.4%,282.5%,35.6%,16.2% 22.7% respectively.PAL and PPO are key enzymes in synthesize of phenolics.No relation was found between phenolics synthesize and PAL activity in Broccoli flowers,but it showed positive relation between phenolics synthesize and PPO activity.

研究表明，本研究中，不同浓度几丁聚糖喷施对青花菜花球的叶绿素、类黄酮、绿原酸、多酚总量、可溶性蛋白及可溶性总糖的含浙江大学硕卜学位论文(2004)量有显著增加，其中以浓度为40mgL一'影响最为显著，花球中的叶绿素、类黄酮、绿原酸、可溶性总糖、可溶性蛋白分别较对照提高64.4%、282.5%、35.6%、 16.2%、22.7%，苯丙氨酸解氨酶、多酚氧化酶是酚类物质合成中关键酶，花球内酚类物质合成与苯丙氨酸解氨酶的活性没有一定的相关性，而与多酚氧化酶的活性呈正相关。

Also, the equation may be used for the estimation of electroosmotic mobility and the calculation of the dissociation constants for acids.

不仅如此，我们还通过文献实验和我们自己的实验验证了我们的新方法，另一方面我们还证明了毛细管电泳测定酸的离解常数的可行性。

The gene for pyruvate kinase,which is involved in glycolysis and catalyze the biochemical reaction from phosphoenolpyruvate to pyruvate,was screened,cloned and sequenced from non photosynthetic Oomycetes,Achlya bisexualis cDNA library.

从真菌藻状菌纲Achlyabisexualis的cDNA文库中克隆了糖酵解途径的最后一种酶—丙酮酸激酶的基因，获得这个基因的完整阅读框架，并且对这个基因的全序列进行了测定。

Reaction of 9-bromofluorenewith diethyl malonate and sodium carbonate gives diethyl 2-(9-Fluorenyl)malonate.Aminolysis of diethyl 2-(9-Fluorenyl)malonate in ethylenediamine and propylene diamine give〓 and 〓, respectively.〓 and 〓 were synthesized by the reaction of 9-bromofluorene with oxalyl bisethylenediamine. Copper and nickel complexes of 〓 and 〓 were obtained by the reaction of 〓 and 〓 with copper and nickel salt, respectively, in aqueoussolution and extrusion of two hydrogen ions from the amide groups.

使9-溴芴与丙二酸二乙酯在无水碳酸钠存在下反应合成出2-(9-芴基)丙二酸二乙酯。2-(9-芴基)丙二酸二乙酯在乙二胺中胺解得到配体〓，2-(9-芴基)丙二酸二乙酯在1，2-丙二胺中胺解得到配体〓，使9-溴芴与草酰二乙二胺作用得到配体〓和〓与相应的金属盐作用分别得到它们的铜、镍配合物。

H-acid has two sulphonic groups, which can be dissociated in aquatic solutions. At pH 2.5, only one of them dissociated.

H-酸萘环上含有的两个磺酸基团，在水溶液中可以解离一个或者两个。pH2.5条件下，主要有一个磺酸基团解离，此时，H-酸通过一个磺酸基团吸附在TiO2表面，占位小，饱和吸附量大，但吸附键较弱，吸附较可逆。pH5.0条件下，主要有两个磺酸基团解离，此时，H-酸通过两个磺酸基团吸附在TiO2表面，占位大。

Compared with DH5α, DA19 had a higher flux of tricarboxylic acid cycle and a lower flux of Embden-Meyerhof-Parnas pathway so it decreased the secretion rate of by-products, such as acetate and pyruvate.This indicated that DA19 had higher efficiency in energy metabolism.

与DH5α相比，DA19的三羧酸循环流量高，酵解途径的流量低，从而减少了乙酸等副产物的分泌，反映了能量代谢效率的明显提高。

The effects of soil acidification on the release and leaching of the base ions Al and Si are discussed as well. The effects on existence and behavior of micrometallic elements and rare-earth elements under soil acidification conditions by affecting the balance of deposition-dissolution, adsorption-desorption, chelation-dissoceation, oxid...

考察了酸化条件下土壤中盐基离子和铝、硅的释放淋失及硅对铝毒的缓解作用；论述了酸沉降通过影响土壤中微量金属及稀土离子沉淀-溶解、吸附-解吸、络合-解离、氧化-还原平衡进而影响其存在形态和化学行为；同时关注了酸沉降对C、N、S、P循环转化直接和间接的影响。

In hydrolyses of compounds with ionic bonds, the nonwater reactants are salt s, acids, or bases, participating in dissociation reactions.

在带离子键的化合物的水解中，参与离解反应的非水反应物是盐、酸或碱。

In hydrolyses of compounds with ionic bonds, the nonwater reactants are salts, acids, or bases, participating in dissociation reactions.

在带离子键的化合物的水解中，参与离解反应的非水反应物是盐、酸或碱。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。