查询词典 solubility

Results The solubility of andrographolide in aqueous solution was very low, and was higher in the oil phase. The andrographolide was highly fat-soluble drugs.

结果 穿心莲内酯在水相中的溶解度非常低，在油相中的溶解度较高，属于脂溶性很强的药物。

Methods The solubility of andrographolide in aqueous solution at different temperatures, different oil phase and in different dissolution media was determined by HPLC.

利用高效液相法测定穿心莲内酯在不同温度的水溶液、不同油相及不同溶出介质中的溶解度。

Solubility of barium chloride and barium oxide in hydrochloric acid, ethanol,acetone,ether and hydrochloric acid- ethanol,hydrochloric acid- acetone,hydrochlo- ric acid- ether has beeen studied and the separation of Ba O from Ba Cl\- 2 with hydrochloric acidethanol as the solvent has been proposed.

研究了氯化钡和氧化钡在盐酸、乙醇、丙酮、乙醚及盐酸-乙醇、盐酸-丙酮、盐酸-乙醚中的溶解性，提出以盐酸-乙醇为溶剂进行两者的分离。以 DBC- CPA为显色剂分光光度法测定氧化钡的含量，加料回收率为 98%～ 10 2 %，氧化钡含量为 0 。32 %时，平行测定 7次，相对标准偏差为 1。 58%。该法适于快速测定热处理盐浴中氧化钡的含量，对监控盐浴品质有指导意义

A novel polymerizable amphiphilic compound with self-assembly ability, 4-2-(acryloyloxy ethoxy benzyl tri-ethyl ammonium bromide, was designed and synthesized. It exhibits good water solubility, strong self-association ability and response to extra-stimulation.

设计并合成了一种新型具有自组装功能的可聚合两亲化合物4-2-(丙烯酰氧基乙氧基苯亚甲基三乙基溴化铵，它易溶于水，具有很强的自缔合能力和对外界刺激的响应性。

The 1-propanol/biuretium flour protein fractionation procedure based on the differential solubility of wheat flour protein in different aqueous solutions of 1-propanol yields three protein fractions, one monomeric in nature and two polymeric fractions corresponding to soluble glutenin, insoluble glutenin. Quantitative of the fraction was made with improved biuret reaction.

丙醇—双缩脲改良测定法用不同浓度的丙醇溶液将小麦面粉蛋白质分离为功能截然不同的单体蛋白、可溶性谷蛋白和不可溶性谷蛋白三部分，然后通过改良双缩脲测定法对不同组分进行定量分析。

The mechanism of carbonization process of aluminate solution was analyzed thermodynamically. The results show that the internal reason of precipitation of Al3 in the process is its spontaneous nucleation caused by supersaturation of aluminate solution. The behaviors of SiO2 in the process are in accordance with that from published experiment, which implies that the content of product SiO2 from carbonization depends on its solubility but is not the result of absorption. The thermodynamic calculation for forming Na2O·Al2O3·2CO2· n H2O was achieved.

摘 要：为对高浓度铝酸钠溶液碳酸化分解过程中产品杂质含量的控制提供理论依据，分析了铝酸钠溶液碳酸化分解过程的热力学，认为该过程中Al3析出的真正机理是过饱和铝酸钠溶液的自发结晶；而基于分解过程中平衡浓度的热力学计算表明，在碳酸化分解过程中SiO2的变化规律与公认的三段变化规律一致，说明该过程产品中SiO2的含量取决于它在溶液中的平衡浓度，而非吸附所致；同时还分析了丝钠铝石的形成热力学。

The difference of the interaction between the two different blocks results in the dependence of the solubility and the chain shape on the block sequence length.

嵌段间的相互作用能的差别越大，则高分子的溶解性和形状对嵌段长度的依赖性就越显著。

The difference of the interaction between the two different blocks results in the dependence of the solubility and the chain shape on the block sequencelength.

嵌段间的相互作用能的差别越大，则高分子的溶解性和形状对嵌段长度的依赖性就越显著

Al-Zn-Mg-Cu-Zr aluminum alloys were prepared by electromagnetic casting and direct chill casting, respectively. The effects of electromagnetic field on as-cast microstructure and alloy elements solid solubility inside crystals of Al-Zn-Mg-Cu-Zr aluminum alloy were investigated.

摘 要：分别采用电磁铸造和普通连铸技术制备Al-Zn-Mg-Cu-Zr合金，研究电磁场对合金显微组织、合金元素晶内固溶度的影响。

Al-Zn-Mg-Cu-Zr aluminum alloys were prepared by electromagnetic casting and direct chill casting, respectively. The effects of electromagnetic field on as-cast microstructure and alloy elements solid solubility inside crystals of Al-Zn-Mg-Cu-Zr aluminum alloy were investigated.

分别采用电磁铸造和普通连铸技术制备Al-Zn-Mg-Cu-Zr合金，研究电磁场对合金显微组织、合金元素晶内固溶度的影响。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐