磺酸

A catalytic amount of Ln(OSO2CF3)3 affected the stereochemistry of-MOPMAM during radical polymerization: the polydispersities of the polymers prepared in the presence of the Lewis acid were broader than those without the Lewis acid and the absolute value of specific rotation decreased in a majority of solvents.

结果表明，在-MOPMAM的聚合反应中，加入稀土盐可观察到明显的效应：在大部分情况下，随着三氟甲磺酸稀土盐加入量的增加，聚合物分子量分布变宽，旋光度也有很大幅度的下降。

MethodsBy high perfomance liquid chromatography method, mobile phase was acetamide plus water solution of sodium heptansulfonic acid and sodium phosphate.

方法采用高效液相色谱法，用乙腈与庚烷磺酸钠磷酸钠的水溶液为流动相，流速 1 。0ml/min ，柱温 4 0℃，检测波长为 2 80nm ，进样量为 2 0 μl。

A novel method for the synthesis of α-bromo acetophenone s by the reaction of 1,3-dibromo- 5,5-dimethylhydantoin with p-toluenesulfonic acid in methanol at 20～60 ℃ was described.

报道了使用1，3-二溴-5，5-二甲基海因和对甲苯磺酸在甲醇中和20～60℃的温和条件下合成α-溴代苯乙酮的新方法。

According to previous research work, the sulfoacetic acid disodium salt was synthesized by a nucleophilic substitution reaction in this paper.

本论文在总结前人研究工作的基础上，采用亲核取代反应合成了磺酸乙酸钠。

The first change relating with removing of water and aldehyde took place at a lower temperature.

因此，在受到加热处理时，木质素磺酸钙的分子间和分子内应当会发生一些缩合反应。

By utilizing three benezenemulticarboxylate derivatives (H2chdc, H2aip, NaH2sip), we obtain 12 coordination polymers. Especially, compelexes 1 and 2 are based on one-dimensional ···OHInOHIn···chains as building units, while complex 3 is based on double four-ring [In8(μ2-O)4(μ2-H2O)8]16+, complex 4 is based on trinuclear In3(μ3-O)(CO2)6, complexes 11 and 12 are both based on nested bistranded helices.

选择了三类取代苯羧酸配体： 2，5-二羟基-1，4-对苯二甲酸(2，5-H2chdc)； 5-氨基间苯二甲酸(5-H2aip)； 5-磺酸基间苯二甲酸钠盐(5-NaH2sip)和InCl3反应合成了十二个配位化合物：其中1、2以···OHInOHIn···链为构筑单元， 3以双四元环[In8(μ2-O)4(μ2-H2O)8]16+为构筑单元，4以棱柱状三核铟In3(μ3-O)(CO2)6为构筑单元，而11、12以嵌套的双股螺旋链为构筑单元。

The company claims to provide high quality natural plant extracts, such as tanshinone IIA, cryptotanshinone, salvianolic acid B, sodium tanshinone IIA sulfonate, seabuckthorn seed oil, wheat germ oil, DHA rich oil, wile chrysanthemum extract and oleoresin ginger.

可提供高品质天然植物提取物：丹参酮ⅡA、隐丹参酮、丹酚酸B、丹参酮ⅡA磺酸钠、沙棘籽油、小麦胚油、DHA精油、野菊花提取物、姜油树脂等。

The synthses of a new type of surfactant-sodium bis sulfuo-succinate was first reported, it could form reversed micelle with iso-octane. This reversed micellar system could extract macromolecular protein-hemoglobin as well as cyt-C.

首次报道了一种新型表面活性剂丁二酸二酯磺酸钠的合成，考察了它与异辛烷形成的反胶束体系在提取小分子的细胞色素C和相对分子质量较大的血红蛋白的行为。

The synthesization technics of MPEG- MAA was studied in this paper,which is an important intermediate used for preparation of polycarboxylate superplasticizer.

本文对制备聚羧酸系减水剂的重要中间体——甲基丙烯酸聚乙二醇单甲醚酯的合成工艺进行了研究，考察了反应时间、催化剂对甲苯磺酸的用量、阻聚剂对苯二酚的用量、反应温度及甲基丙烯酸与聚乙二醇单甲醚的用量比对酯化率的影响。

The premixing self-assembly solution of horseradish peroxide with poly(sodium 4-styrenesulfonate) is made by blending HRP and polyelectrolyte PSS,and the active.enzyme muhilayer biofilm is fabricated by altemate deposition of and PDDA on the surface of negative ionized PET.

以阳离子化的辣根过氧化物酶和阴离子聚苯乙烯磺酸钠的预混合溶液，与阳离子聚电解质聚二甲基二烯丙基氯化铵通过逐层组装，在阴离子化聚对苯二酸乙二酯表面构建了多层生物活性膜。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。