查询词典 cationic

Adding definite MgSO4 and cationic starch into the pulp system will generate a synergistic effect to the strengthening performance of the nanometer strengthener, and the synergistic effect wilt be benefit to increase the strength of the handsheet.

和空白实验相比，环压指数增加69.95%，抗张指数增加41.19%在纸浆体系中添加适量的MgSO4、阳离子淀粉，可对纳米增强剂的增强作用起到一定的协同作用，其中，加入MgSO4的增强效果要优于阳离子淀粉。

Two cationic photoinitiators are successfully synthesized,which are S,S-dialkyl-S-(3,5-dimethyl-4-hydroxyphenyl)sulfonium(4HPS) and S,S-dialkyl-S-(3,5-dimethyl-2-hydroxyphenyl)sulfonium(2HPS).

合成两种紫外光阳离子引发剂，S，S-二甲基(3，5-二甲基-4-羟苯基)硫鎓六氟磷酸盐(4HPS)和S，S-二甲基(3，5-二甲基-2-羟苯基)硫鎓六氟磷酸盐(2HPS)，并用红外光谱、1H-NMR、元素分析确证合成产物即为目标产物。

As for the long-chained guests such as cationic surfactants with different length of alkyl chain added, they can insert into the CD cavity as a spacer to form a ternary inclusion complex with the host molecule.

同时还发现，化学修饰的环糊精所连发色团与CD形成的"自包结"配合物较相同发光分子与非修饰的环糊精形成的包结物具有更强的结合能力。

The dispersion behavior of ultrafine talc in aqueous system was investigated by the sedimentation test. The dispersion effects of cationic surfactant and some anionic surfactants with different hydrophilic ionogens were studied. By testing the changes of Zeta potential and the dispersion rate of the system with the addition of surfactant, the dispersion mechanism of dispersants was discussed.

采用沉降法考察了阳离子表面活性剂和几种亲水基不同的阴离子表面活性剂在水介质中对微细滑石颗粒的分散效果；通过测试加入表面活性剂前后颗粒表面Zeta电位、体系分散率变化，探讨了分散剂的作用机理。

Chromatographic behaviors of six cationic thulium porphyrin complexes have been firstly investigated in different mobile phase.

2首次以六个不同的铥卟啉配合物（四（4-羟基苯基）卟啉铥、四（4-甲氧基苯基）卟啉铥、四苯基卟啉铥、四（4-甲基苯基）卟啉铥、四（4-氯苯基）卟啉铥和四（4-异丙基苯基）卟啉铥）为研究对象进行HPLC分离。

We firstly succeeded in the separation of the new cationic complexes of tetrakis (4-methoxyphenyl) porphyrin with yttrium, erbium, thulium and ytterbium (RE-TMOPP-Cl) by reserved-phase high performance liquid chromatography.

我们首次用高效液相色谱分离了性质极其相似的钇、铒、铥和镱四个重稀土的阳离子型四（4-甲氧基苯基）卟啉配合物。

Nitratomethyl-3-ethyloxetane was synthesized by the process of cyclization, nitation from trimethlolpropane and diethyl carbonate, and the homopolymer of 3-nitratomethyl-3-ethyloxetane was synthesized with 1,4-butanediol as initator and boron trifluoride etherate as an catalyst by cationic ring-opening polymerization.

以三羟-甲基丙烷和碳酸二乙酯为原料经环化、硝化两步反应合成了化合物3-硝酸酯甲基－3-乙基氧丁环；采用1，4-丁二醇为引发剂，三氟化硼乙醚(BF3Et2O)为催化剂，NIMEO发生阳离子开环聚合得到一种端羟硝酸酯均聚醚PNIMEO。

Synthesis of cationic lignin flocculant by Lignin, epichlorohydrin and trimethylamine was obtained.

研究了木质素与环氧氯丙烷、三甲胺合成木质素季铵盐的工艺。

This paper deals with a cationic bisamide compound system deinking agent whose intermediate was prepared by using tristearin, isopropylidene glycerol, diethylenetriamine and catalyzed by p-Toluene sulfonic acid and reacted at 140℃ for 2 h.

摘 要：以三硬脂酸甘油酯、二乙烯三胺为原料合成了中间体，经硫酸二甲酯阳离子化制备出双酰胺季铵盐阳离子表面活性剂，再与AEO-9、TX-10复配制得复合脱墨剂。

objective to isolate and purify the antimicrobial peptides with anti-toxoplasma gondii activity isolated from the haemlymph of musca domestica larvae.methods the antimicrobial peptides of musca domestica larvae were induced by infection and injury were isolated and purified by trituration,centrifugalization and column chromatography.then the antimicrobial peptides with anti-toxoplasma activity were sieved by mtt colorimetric method and haemacytometry.results it was found that two antimicrobial peptides had anti-toxoplasma activity through resource s cationic column chromatography and superdex g75 gel column chromatography.conclusion the two antimicrobial peptides with anti-toxoplasma activity existing in the haemlymph of musca domestica larvae had different anti-toxoplasma effect.

作者单位：山西医科大学寄生虫教研室，太原 030001；化学生物学与分子工程教育部重点实验室山西大学生物技术研究所目的从家蝇幼虫血淋巴中分离纯化具有抗弓形虫作用的抗菌肽。方法通过损伤加感染的方法诱导家蝇幼虫大量表达抗菌肽，然后经过研磨、离心和层析等过程，将家蝇幼虫抗菌肽进行分离纯化，采用四甲基偶氮噻唑蓝比色法和血细胞计数法筛选对弓形虫速殖子有抑制作用的抗菌肽。结果经resource s阳离子柱和superdex g75凝胶柱层析后，筛选出2种对弓形虫速殖子有杀伤作用的抗菌肽。结论家蝇幼虫血淋巴中存在抗弓形虫作用的抗菌肽，而且不止一种，但其效果有所不同。

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。