过氧化
- 与 过氧化 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The influence factors on decomposition efficiency, such as digestion time and pH were identified. It was shown that non-condensed phosphate could be decomposed completely by persulphate. But in alkali condition, condensed phosphate can only be decomposed partly.
结果表明:在碱性条件下过二硫酸钾高温氧化可使海水中非聚磷类化合物完全回收,而聚磷类化合物回收率不高,延长消化时间聚磷类化合物的回收率有一定提高。
-
The influence factors on decomposition efficency, such as digestion time and pH were identified. It was shown that noncondition phosphate could be decomposed completely by persulphate. But in alkali condition, condensed phosphate could only be decomposed partly.
结果表明,在碱性条件下过二硫酸钾高温氧化可使海水中非聚磷类化合物完全回收,而聚磷类化合物回收率不高,延长消化时间聚磷类化合物的回收率有一定提高。
-
Dissolved total phosphorus ; persulphate oxidation ; recovery ; seawater
溶解态总磷;过硫酸盐氧化;回收率;海水
-
The synthetic route starts from penicillin G, peroxyacetic acid(8.5%) as Oxidizing Agent to get penicillin G sulfoxide; esterifided with p-nitrobenzyl bromine to synthesize penicillin G sulfoxide ester; we synthesize 3-exomethylenecepham sulfoxide ester with phthalimide potassium and 4A molecular sieve as acid scavenger to open the ring, SnCl_4 as catalyzation to close the ring. The yield is over 60%.
本研究采用的合成路线为:以青霉素G钾盐为原料,选用工业过氧化氢制备的过氧乙酸(22.3%)稀释至8.5%为氧化剂,氧化得青霉素亚砜;采用对硝基溴苄为酯化试剂,制备青霉素亚砜酯;以NCP(N-氯代邻苯二甲酰亚胺)为开环试剂,酞酰亚胺钾和4A型分子筛为酸清除剂,顺利开环;再经无水SnCl_4催化闭环得3-环外亚甲基头孢亚砜酯,最终产率在60%以上。
-
It was decided at this meeting that the investigation of gelatin and oxypolygelatin should be discontinued until a product could be supplied that could be characterized physicochemically; with evidence of reproducibility and stability; and of higher molecular size, so that it would not be excreted at an excessive rate, as were the products then in use.
在这次会议上决定了,直到一个产品可以提供理化兼备的特点,有再现性和稳定性的特征,和较高的分子量以使它不能以过高的速率排出,直到将来这样产品被应用,明胶和氧化聚明胶的研究才能中断,在动物身上的忍受性和毒性也应该很理想。
-
Surface-treated aluminum hydroxide and magnesium hydroxide mixture, linear low density polyethylene and polyethylene grafted by maleic anhydride were melt-kneaded and extruded to produce a flame-retardant masterbatch, and then was extruded with polyamide 6(PA6) to yield PA6/SAMH/PE(50/30/20 by mass ratios)ternary composite.
采用表面处理过的氢氧化铝与氢氧化镁混合物(质量比2:1)、线型低密度聚乙烯、马来酸酐接枝聚乙烯共混挤出制成母料,然后与聚酰胺6(PA6)共混挤出即母料法制备了PA6/SAMH/PE三元复合材料。
-
The company performs the professional design according to the investment scale and the production features, uses the international advanced falling film heating vaporation technology, the rectification process is characterized by high heating rate and low energy consumption, the liquid in the caldron is in the motion state all the time, which solves the technical problems of the traditional fractionation equipment such as long time stationary material liquid in the caldron, locally heated media, deterioration or polymerization, more bottom settlings and unpleasant burned taste caused by overtemperature.
公司根据企业的投资规模和生产特点进行专业设计,运用了国际上先进的降膜加热蒸发技术,分馏过程加热速度快、能耗低、釜液始终处于运动状态,解决了传统分馏设备存在的原料液在塔釜内长时间静止、介质局部受热、温度过高、导致产品变质或聚合、脚子多、产品带有不愉快焦味等技术难题。此外,采用了真空状态下连续出料技术,解决了分馏过程中系统放料操作通入空气,导致系统真空不稳定及带来热敏性介质氧化聚合问题。
-
Water-soluble single-walled carbon nanotubes were prepared by successive ammonium persulfate oxidation and ammonium sulfamate chemical modification.
通过过二硫酸铵氧化和氨基磺酸铵化学修饰两个步骤,制备了在水中有较大溶解度的单壁碳纳米管。
-
The article focuses on the aberrant expression and significances of proto-oncogenes, tumor suppressor genes and genes associated with the proliferation process of gastric cells such as telomerase, transcription factor and cyclooxygenase, etc. These genes, alone or synergically, participate in gastric cancer cell proliferation, resulting in an uncontrolled growth characterized by over-proliferation of decreased apoptosis of gastric cancer cells.
本文着重阐述了与胃癌细胞增殖过程密切相关的端粒酶、核转录因子、环氧化酶等基因以及参与细胞周期调控的原癌基因、抑癌基因的异常表达及临床意义,这些基因或单独作用,或相互协同,参与胃癌细胞的增殖,使肿瘤细胞生长以增殖过多、凋亡过少的失控性生长为特征。
-
Finally, the construction of a tetracyclic core of the target molecule was achieved by oxidation of the furan ring and intramolecular Michael addition. The total synthesis of 8-demethyl-pallavicinin B will be completed after two or three more operations starting from a pivotal precursor.
在构建目标分子骨架结构的研究中,成功的运用过酸氧化呋喃环-分子内Michael加成策略构建了四环体系,再经过两到三步的转化即将可以完成8-去甲基-pallavicinin B的全合成。
- 推荐网络例句
-
This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
-
Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
-
There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。