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Four different ionic liquids, BF4, BF and PF6 were investigated, arid PF6 showed the best effect when used as the reaction media, giving the highest yield in the shortest reaction time. Promoted by KF in PF6, N-aryl or N-alkyl monosubstituted sulfonamides could react with various activated halides and unactivated primary halides smoothly. Reactions were performed at 85℃ for 2~10 hours, and thirteen N-alkylation products were obtained with 70%~97% yields. Moreover, the ionic liquid recovered could be reused for three times with no appreciable decrease in yield and reaction rate.

结果表明，以PF6为反应介质时显示出了最好的效果，反应的时间最短，收率最高。N-芳基或N-烷基单取代的磺酰胺和各类不同结构的活化的卤代烃和未活化的一级卤代烃在PF6中KF作用下，85℃反应2~10h，以70%~97%的优良收率得到了13个N-烷基化产物，而且离子液体回收使用3次后效果未降低。

Potential add-on options include multihead weighers, linear weighers, volumetric cup dosers, volumetric screw dosers and volumetrics for liquids, all providing exceptional performance when combined with Dolzan packaging machines.

潜在的附加选项，包括多头秤，线性秤，体积杯配量，体积螺丝配量和液体volumetrics，都提供了卓越的性能与多尔藏包装机相结合。

The microorganism limit of povidone iodine solution (povidone iodine effervescent tablet + pH5.8 buffer liquids) coninstents with government standard within determined time, but it needs a further observation whether mycetes could multiply if the above praeparatums will be set for a long term.

聚维酮碘溶液制剂（聚维酮碘泡腾片+pH 5.8的缓冲液）在测定时间内微生物限度符合国家标准，长期放置后是否滋生霉菌有待进一步观察。

Series PT of high temperature Melt Pressure Transducers are suit to measuring and controlling the pressure of some high temperature melts－such as chemical fibre, plastic, rubber and petrifaction－or other overproof liquids.

PT系列高温熔体压力传感器适用于化纤、塑料、橡胶、石化等高温熔体压力或其它耐高温的流体压力的测量和控制。

For some Pharmacopeial articles, especially liquids such as essential oils, the optical rotation requirement is expressed in terms of the observed rotation, a, measured under conditions defined in the monograph.

对于某些药典物质来说，尤其是香精油之类的液体，旋光的规定表达为在该各论中所规定的条件下进行测定，所观察到的旋转，a。

Third, we studied the N-alkylation of phthalimide, indole, benzimidazole, succinimide with a variety of halogen in ionic liquid [BF4], [PF_6]. The present method has many obvious advantages, compared to those reported in the literature, including the generality, simplicity of the methodology, the ease of product isolation, the higher yield and potential for recycling of ionic liquids.

第三、研究了离子液体[BF_4]、[PF_6]和BF_4促进邻苯二甲酰亚胺、吲哚、苯并咪唑、丁二酰亚胺的N-烷基化反应，克服了传统溶剂中进行N-烷基化反应要求强碱、反应条件苛刻、时间长、产率一般的不足，改善了反应条件、提高了产率。

Considerable attention has really been focused on ionic liquids as "green" alternatives to classical environmentally damaging organic solvents in many fields such as in organosynthesis, material, catalysis, electrochemistry, biochemistry, physicochemistry, separation and so on. However, there have been only a few examples of chiral ILs have been reported so far, and ILs possessing chirality are having been synthesized aimed at application in asymmetric catalytic reaction.

离子液体在许多领域如电化学、有机合成、催化、生物化学、物理化学、材料及分离等的绿色替代溶剂技术引起了人们的重视，然而，有关手性离子液体的合成与应用的报道比较少，含有手性片段的离子液体不断被合成出来并期望在不对称催化反应中得到应用，但是成功的例子不多，使用手性离子液体在不对称催化反应中还在初始的探索阶段。

Compositions containing additions of SiO2 and Y2O3 did not show any densification after pressureless sintering, due to the high viscosity and extensive volatilisation of the liquids formed at the sintering temperature.

成分含增补的二氧化硅和氧化钇没有出示任何致密化后，无压烧结，由于高粘度和广泛挥发的液体形成于烧结温度。

Cause of peripheral venipuncture in severe burn patients is complex, not only resulted from capillary permeability increase due to protopathy, but related closely to sorts of infused liquids and drugs.

严重烧伤病人周围静脉输液渗漏的原因比较复杂，除原发病导致毛细血管通透性增加外，与输入液体及药物的种类与性质密切相关。

In order to solve the problems of complex cellulose production process and serious pollution, The paper investigated the solubility of cotton stalk cellulose in ionic liquid N-ethyl pyridinium bromide. The structural differences between cotton stalk cellulose and cellulose regenerated from the ionic liquid were investigated using infrared spectroscopy and chemical analysis. Recovery ratio of ionic liquids was also studied.

为解决纤维素生产加工过程复杂且污染严重问题，试验探讨了棉秆纤维素在离子液体溴代N-乙基吡啶中的溶解性能，采用红外光谱等手段对棉秆纤维素在离子液体中溶解和再生前后的结构变化进行了分析，并探讨了离子液体的回收。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。