阴离子的

A process for preparing alkylene glycols including reacting an alkylene oxide with water in the presence of a combination of additives and an anion exchange resin, wherein the combination of additives comprises carbon dioxide and an organic or inorganic base provided in an amount sufficient to maintain a pH of the reaction mixture between about 5.0 and 9.0, with the proviso that, when the base is bicarbonate or carbonate, then the anion exchange resin is a trimethyl benzyl ammonium anion exchange resin.

制备亚烷基二醇的方法，包括让烯化氧与水在添加剂组合和阴离子交换树脂存在下进行反应，其中添加剂组合包括二氧化碳和以足以保持反应混合物的pH值在约5.0和9.0之间的量提供的有机或无机碱，前提条件是当碱是碳酸氢盐或碳酸盐时，阴离子交换树脂是三甲基苄基铵阴离子交换树脂。

The synthesis method which is new and high efficient in anionic trash catchers made with dimethylamine and epichlorohydrin is introduced in the article.

前言阴离子垃圾是指纸机湿部存在的所有溶解的阴离子聚合物和胶体的阴离子物质的总称。

However, in the setting of an elevated serum anion gap acidosis, other anions such as acetoacetate or lactate are present, thus rendering the urinary anion gap a useless test.

但是在阴离子间隙增大的酸中毒中存在其它的阴离子，如酮酸酸中毒时的乙酸乙酯或乳酸酸中毒时的乳酸。这时检测尿阴离子间隙就没有什么意义了。

However, in the setting of an elevated serum anion gap acidosis, other anions such as acetoacetate or lactate are present, thus render ing the urinary anion gap a useless test.

但是在阴离子间隙增大的酸中毒中存在其它的阴离子，如酮酸酸中毒时的乙酸乙酯或乳酸酸中毒时的乳酸。这时检测尿阴离子间隙就没有什么意义了。

The electric conductivity of solid polyiodides increases largely as the aggrandizement of polyiodide anions"polymerization degree. The solid polyiodides have excellent sterilizing effects and the effect of tetra-n-butyl ammonium undecaiodide is the best of them, and the sterilizing effects increase as the aggrandizement of polyiodide anions" polymerization degree. The sterilizing effects of resinic polyiodides increase as the aggrandizement of polyiodide anions polymerization degree, the heptaiodide resinic polyiodide has better sterilizing effects than the triiodide and pentaiodide.

固体高聚碘系列化合物的电导率随着高聚碘阴离子聚合度的增加而增加，并且增幅较大；固体高聚碘对常见细菌均具有很好的杀灭作用，并且随着高聚碘阴离子聚合度的增加，杀菌能力也随着增强，其中正四丁基十一碘化铵杀菌剂的效果最佳；树脂高聚碘随着高聚碘阴离子聚合度的增加，杀菌能力增强，碘七树脂高聚碘的杀菌效果要明显好于碘三树脂和碘五树脂高聚碘。

The reaction mechanism was studied and the proposed methods were applied to the determination of SOD activity.Second, baded on sodium terephthalate trapping HO, an automated spectrofluorimetry for determining HO with flow injection analysis was developed. It was applied to the anti-oxidation determination of maize pollen polysaccharose and natural foods.

一设计合成了两种用于超氧阴离子自由基识别检测的荧光探针——香草醛缩-8-氨基喹啉和2-吡啶甲醛苯并噻唑啉，用普通荧光法和流动注射荧光法对超氧阴离子自由基进行分析测定，研究了反应机理，并将其用于超氧阴离子自由基和超氧化物歧化酶活性的测定。

A terephthalate anion-pillared Ni-Al hydrotalcite-like layered double hydroxide was synthesized on the surface and within the pores of γ-Al 2O 3 by in situ crystallization and a polytungstate anion-pillared hydrotalcite was subsequently obtained by ion-exchange.

采用原位沉积法在γ-Al2O3表面原位合成了对苯二甲酸阴离子柱撑的镍铝水滑石，并用同多钨酸根阴离子部分交换了镍铝水滑石中的对苯二甲酸阴离子。

This method of deposition offers the possibility of entrapping a large and well-known amount of enzyme into the clay film.

阴离子粘土层板带正电荷，层间充填有平衡电荷的阴离子，层间通道中的阴离子是可交换的。

It is shown from the study that influence of co-use anionic and nonionic surfactants on the enzyme activity are less than single anionic surfactant Multi-component stabilizers are much better than single-component stabilizers for enzyme activity.

研究结果表明：阴离子表面活性剂与非离子或另一种阴离子表面活性剂复配后，对酶活性的影响明显小于单一阴离子表面活性剂的影响。多组分稳定剂比单组分稳定剂对改善酶的稳定作用好得多。

There are some methods used commonly to immobilize POM on electrode surface, for example, electrodeposition of POMs on the electrode surface from a polyoxometalates solution under constant potential, self-assembly and layer-by-layer deposition, entrapment POM into polymers matrics and sol-gel method. There are some drawbacks using above methods.

杂多酸化学修饰电极主要有以下几个方法：恒电势下，多酸阴离子在电极表面的电沉积；多酸阴离子在电极表面的自吸附；聚电解质和多酸阴离子在电极表面的交替沉积；把多金属氧酸盐包埋在各种聚合物中；溶胶－凝胶法。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐