阴离子的

The anion UV cured water soluble prepolymer was synthesized with toluene diisocyanate, dihydroxy compound, dihydroxyalkyl carboxylic acid, and polyurethane acrylate. The structure of the prepolymer was characterized by infrared spectroscopy.

采用甲苯二异氰酸酯、聚酯二元醇、二羟甲基丙酸和丙烯酸羟乙酯合成水性阴离子型聚氨酯丙烯酸酯，用傅立叶红外光谱证实了该聚合物的结构。

Anionic surfactant sodium dodecyl sulfate can be used to enhance or regulate the EOF.

另外，在缓冲液中加入阴离子表面活性剂SDS可以调节电渗流的大小。

A capillary electrophoretic method for determining the inorganic anions in the ash of black powder has been developed.

发展了一种用于黑火药余烬中无机阴离子测定的毛细管电泳分析方法。

This article reports a new kind of copolymer, non polar polar terpolymer : poly(styrene-butadiene-methyl methacrylate ) P(S-b-B-b-MMA prepared by anionic polymerization with n BuLi as initiator, 1,1 diphenylethylene as capping agent and lithium 2-(-methoxyethoxy) ethoxide as complex agent.

以正丁基锂为引发剂， 1 ，1-二苯基乙烯为戴帽剂， 2-(2-甲氧基乙氧基)乙氧基锂为络合剂，在环己烷、四氢呋喃混合溶剂中，采用阴离子聚合法，于－70℃～－40℃合成了非极性-极性的三嵌段共聚物聚苯乙烯-聚丁二烯-聚甲基丙烯酸甲酯，并借用GPC、1H-NMR、DSC、TEM、IR等仪器对共聚物进行了表征。

Sometimes it is not clear whether a normal gap metabolic acidosis is due to an extrarenal process (e.g., gastrointestinal loss of HCO3-) or defective generation of HCO3- in the kidney e.g., RTA

有时很难判断阴离子间隙正常型代谢性酸中毒是由于肾外原因（例如胃肠道丢失HCO3-）还是肾脏不能产生HCO3-引起的。

Between the ages of 20 and 70, one-third of those cells die and are not replaced in men," said Goldspink."

D。胶体微粒具有较大的表面积，能吸附阳离子或阴离子，在电场作用下产生电泳现象

The trace anions in heteropoly acid can be determined by ion chromatography.

离子色谱法是测定阴离子最理想的分析方法。

In the reaction of e〓 with the two azo-dyes, hydrazyl type radicals are formed via electron addition followed by rapid protonation.

甲基橙和酸性橙7与水合电子反应形成的阴离子自由基都迅速质子化成偕腙肼自由基。

However, only the crystal of hydroxy coordination formed, which means that the carbonates are not stable.

然而，在析出晶体时仅生成醇羟基轴向配位的配合物，说明该碳酸酯阴离子不稳定。

The experimental results showed that when AcO-or other anion s were added to a solution consisting of 1,5-(di-benzaldehyde) dithiocarbohydrazone and Hg2+(at a ratio of 1∶2),a hypsochromic shift took place on the maximum ultraviolet absorption peak of the ligand.

设计合成了配体1，5-二双缩二氨基硫脲及其金属配合物，探讨了不同金属阳离子对1，5-二双缩二氨基硫脲紫外吸收光谱的影响，并将标题化合物应用于阴离子识别。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。