二乙胺

STUDY ON THE EQUILIBRIUM AND COORDINATION COMPOUND OF IRONEXTRACTION WITH N,N-DI (1-METHYLHEPTYL)ACETAMIDE IN HYDROCHLORIC ACID

N，N-二(1-甲基庚基)乙酰胺在盐酸介质中对铁的萃取平衡及其配合物的研究-中国学术期刊网络出版总库

PLA grafted with PAA has been used as material for preparation of particles. Without using surfactant, and with dimethyl acetamide as solvent and with hexane containing 4% isopropanol as precipitation solution, PLA particles have been prepared with a diameter between 700 and 1250 nm.

聚乳酸接枝聚丙烯酸的高分子化合物，用於制备微粒，二甲基乙醯胺为使用之溶剂，己烷及4%异丙醇为所需之沉淀溶液，界面活性剂并未使用，所得微粒平均粒径大小为700-1250 nm。

The system can detect hexylamine, dimethyl sulphoxide and acetonitrile properly and is verified that it is valid.

利用该系统准确识别了环己胺、二甲基亚砜和乙腈三种有机化合物，验证了所构造的系统的有效性。

CdSe QDs of zinc blende structure have been synthesized by a simple ethylenediamine-assisted method.

采用简单的乙二胺辅助方法合成出闪锌矿型结构的CdSe QDs。

The heat capacity Cp of EDTA solution used as activator in the Buna- S manufac-ture was measured by using a precision automated adiabatic calorimeter in the temperaturerange of 278K to 324K as fundamental data for the construction of large compositive appara-tus.

丁苯橡胶合成用活化剂乙二胺四乙酸盐溶液比热容的测定赵小明，刘志刚，陈钟颀（西安交通大学热工教研室西安710049）关键词EDTA溶液，比热容，绝热量热法比热容是物质重要参数，与物质结构密切相关。

Polyethersulfone with Cardo is a developed engineering thermoplastic and membrane material with high glass transition temperature. PES-C ultrafiltration membranes were prepared by phase inversion method using dimethylacetamide as solvent and PVPK3O as additive.

采用凝胶相转化法，以新型耐高温工程塑料－含酚酞侧基的聚芳醚砜为膜材料，N，N-二甲基乙酰胺为溶剂，通过改变铸膜液中添加剂聚乙烯吡咯烷酮(PVPK30)的含量，在平板刮膜机上制备了一系列超滤膜。

Using reagent D_2 as activator,malachite could be well floated by xanthate without addition of sodium sulfide,but its activation to chrysocolla was not obvious.

我国用乙二胺磷酸盐或D：药剂活化难选氧化铜矿物，已在工业试验或生产上取得了明显效果。

In order to optimize an effective combined preservative applied to the orange juice preservation, the authors studied the synergistic effect of biological and chemical combined preservative which contained Nisin, potassium sorbate, EDTA and sodium isoascorbate in preservation of orange juice compared to preservation effect of each aforementioned additive in individual use. Results show that the growth of microorganisms can not be inhibited completely using each aforementioned additive in single use.

该文以天然生物防腐剂乳酸链球菌素、化学防腐剂山梨酸钾、乙二胺四乙酸以及食品抗氧化剂异Vc钠为原料，对通过复配后得到的各组复合型防腐剂在橙汁保鲜中的协同增效作用进行研究，并且与单一的防腐剂保鲜效果进行比较，得出一组适合在橙汁中使用的高效复合型防腐剂。

The article has put forward a new method for identifying the end reaction point of synthesizing alkyl polyglycoside ,which mainly uses a novel reagent made of ethylene diamine tetraacetic acid and blue copperas to analyse the residual glucose.

介绍了一种新型的鉴定烷基糖苷合成反应终点的方法，以乙二胺四乙酸和五水硫酸铜配制的试剂，通过分析反应混合物中葡萄糖的剩余量来鉴定反应终点。

Based on the predecessor study on deamination of industrial ethylenediamine on normal pressure and on the basic principles of reaction engineering,the method,criteria and parameter of amplification is determined.

根据以乙二胺为原料常压气固相催化合成哌嗪的小试研究结果，依据反应工程学的基本原理，确定了放大方法、放大准则和放大参数。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。