查询词典 cation-active

With the quantity of cation, deposit sequence and its geochemical significance can be found out.

并综合剖面中阳离子的含量，分析了它们在不同剖面层位中的沉淀序列及其地球化学意义。

Polyphenol compounds were extracted from the sorghum groats by water and methanol. Total phenolic content, reducing power, chelating activity, DPPH radical scavenging activity, ABTS radical cation scavenging activity and inhibition of hydroxyl radical-mediated 2-deoxy-D-ribose degradation of the extracts from the sorghum groats were determined.

以水和甲醇为溶剂提取高粱籽粒中的多酚类化合物，测定了提取物中的总酚含量、还原力、Fe~(2+)络合能力以及提取物对DPPH、ABTS、羟基自由基的清除能力。

Cation model in order to comply with European homologation regulations.

阳离子模型，以符合欧洲认证法规。

These methodologies not only include most-often-used methods such as lectin-based affinity chromatography, boronic acid method, hydrazide chemistry and hydrophilic chromatography, but also some novel methods, for example, size exclusion chromatography and strong cation exchange enrichment.

这些方法包括常用的凝集素亲和法、硼酸法、肼化学法和亲水作用法，还包括分子筛法、强阳离子交换法等新方法。

The experimental results showed that the ion exchange capacity and hydrogen ion transmigration rate of the CuPc8-SA cation exchange membrane were increased.

实验结果表明，CuPc8-SA阳离子交换膜的离子交换容量、H+离子透过率均获得提高。

Graded hydrolysates were desalted by cation ion- exchange resins and anion ion- exchange resins. By comparing the desalting rate and peptide recovery rate, the optimum hydrolyte flow rate was 10 CV/h.

采用阴阳离子交换树脂脱盐法对超滤分级肽进行纯化，以肽回收率和脱盐率为考察指标，确定10 CV／h为最佳流速。

Theoretically, the retention equation is derivated for organic amphoteric compounds on cation-exchange column with hydronium ion as eluent ion, in terms of acid -base equilibrium and ion-exchange equilibrium.

首次从理论上导出了有机两性物质在阳离子交换柱上以H〓为淋洗离子时的保留关系式并用实验加以了证实，以此估算了两性物质的碱性离解常数K〓。

It is interesting that (1)hyperconjugation of the solvent's CF3-donor group prefers H4/H5 of BMI cation to H2, which can be explained by the steric hindrance of PF6 anion;(2) the various-temperature 19F spin-lattice relaxation times (T1) of CF3 show phase change, e.g.

藉由分析阳离子和三氟乙醇的扩散速率求得DD值，可以看到改善在乙醇形成大的基团，产生较强的分解，三氟乙醇的性质利用19F、1H化学位移，得到(1)CF3和阳离子H4、H5形成超共轭大於对H2，因为立体效应的关系，而藉由19F迟缓时间的数据，三氟乙醇展现相变化，由一到两各堆叠的离子对，和一个阴离子形成超阴离子的情形，因为溶剂而开始崩解，在继续分解可得到自由的阴阳离子。

Furthermore, the relationship between the hyperfine field variation and the cation distribution is discussed.

饱和磁化强度和居里温度的测量结果表明，这种现象可能是由于样品中纳米颗粒表现出的超顺磁性导致的。

Cl - adsorption,metal cation adsorption,inducing adsorption,variable charge soil,constant charge soil.

本文主要研究在可变电荷土壤和恒电荷土壤中，金属阳离子对Cl-离子吸附的诱导效应。1 实验部分1 1 土壤样本土壤样本为广东省的砖红壤和赤红壤，江西省的红壤以及江苏省的黄棕壤，均为底土。

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。