水化合物

So how to purity MAP is becoming key technology.

因此，如何有效除去肥料级磷铵料浆中的水不溶化合物杂质就成为工业级磷铵提纯生产的关键技术。

The configuration of a water-soluble compound containing labile protons in water solution was analyzed with NMR technique.

利用核磁共振对在水溶剂易溶且含活泼质子的化合物的结构进行解析。

The compound of the invention is produced by drying 5Kg of malaytea scurfpea fruit seeds, and cold soaing and extracting for four times by 70% industrial alcohol, decompressing and concentrating lixivium to obtain alcohol extract, mixing by adding a right amount of water and extracting by using Sherwood oil and ethyl acetate.

本发明化合物是干燥补骨脂种子5Kg，用70％工业乙醇冷浸提取四次，浸出液减压浓缩得乙醇提取物，加适量水混溶，依次用石油醚、乙酸乙酯萃取。

Chiral separation of nine enantiomers, which include lobeline, tropicamide, promethazine,propranolol, atenolol, cyclandelate, salbutamol, fenfluramine and benzhexol, has been for the first time achieved by nonaqueous capillary electrophoresis.

用非水毛细管电泳成功地分离了洛贝林、托吡卡胺、普萘洛尔、阿替洛尔、环扁桃酯、沙丁胺醇、苯海索、芬氟拉明和异丙嗪等9种手性化合物。

G. polyhydroxyethyl methacrylate and polyvinyl alcohol. Some potential development and application of the materials are discussed tentatively.

胶原蛋白和一些合成高分子化合物(如聚甲基丙烯酸羟乙酯，聚乙烯醇等)，作为生物材料已得到广泛的应用，而两者形成的复合材料水凝胶具有良好的生物相容性和理化性质，是一类新型的生物材料，具有很大的研究和应用价值。

However, the common GBE is microsome, which has difficulty in crossing the brain blood barrier because of big molecule diameter.

但普通GBE 药物颗粒直径较大，为大分子药物，较难穿透血脑屏障，其主要成分为黄酮类和内酯类化合物，易溶于有机溶剂，不能溶于水所以大大限制了其在临床上的应用。

Phenols are polar narcosis compounds, whose toxicity to photobacterium phosphoreum can be described by logP and pKa.

苯酚类化合物在水中的电离程度受水环境pH的影响，因此pH值成为影响其毒性的重要因素之一。

Was packed electrokinetically and the separation performance of basic compounds was investigated in the pressurized capillary electrochromatography system using 1 μm nonporous bare silica spheres as stationary phase and acetonitrile-water as mobile phase. The effects of the composition of the mobile phase, the concentration of the buffer, pH value, applied voltage and so on on the separation performance were investigated.

以乙腈-水体系作为流动相，详细考察了碱性化合物在该色谱柱上的加压电色谱分离性能，讨论了流动相比例、缓冲液浓度、pH值及操作电压等因素对分离的影响。

Using the basic principle of the color fading of Mn(Na2HP2O7)3, due to oxidizing by oxidizable organic matter at concentrated H2SO4 the effects of different concentrations of organic carbon compounds, colorimetric conditions (temperature, color developing time and colorimetric wave length) and some intervening ions on the colorimetric determination of dissolved organic carbon were systematically studied.

利用紫红色络合物Mn(Na2HP2O7)3在浓H2SO4存在时可氧化有机质使络合物颜色变浅的基本原理，系统研究了不同种类、不同浓度的有机碳化合物、比色测定的条件(温度、显色时间和比色波长)与一些干扰离子对水溶性有机碳比色测定的影响。

L-Phenyl-3-methyl-5-pyrazoIone was synthesized by the reaction of ethyl acetoacetate and phenyl hydrazine in ethanol.

在无水乙醇的存在下，乙酰乙酸乙酯和苯肼为原料合成标题化合物。

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。