杂质

The results showed that depending relatively largely on temperature, the solubility of xylitol decreased with adding ethanol and increased with adding impurities such as sorbitol or adonitol.

结果表明，木糖醇属于溶解度温度系数较大的一类物质；乙醇的加入可降低木糖醇的溶解度；而阿东糖醇、山梨醇等杂质会适当增大木糖醇的溶解度。

Al impurity, the floatabilities of hematite and aegirine were resemble, which is contributed to the existence of structrual iron ion on surfaces of both minerals. It is the structrual iron ion that accelerates the floatability of aegirine greatly and leads to difficult separation with hematite. 2. The basic mechanism of actions of fluorosilicate salts as selective depressants of aegirine during the direct flotation of hematite was investaged detaily by using FTIR and XPS spectrocppy, fluorosilicate salts are poor depressants for hematite, but are very strong depressants for iron-containing silicate such as aegrine in weakly acid medium, which can enlarge the flotation differences between two minerals.

运用X射线衍射、俄歇能谱等测试手段研究了赤铁矿与钠辉石纯矿物的晶体结构特征，表面破裂面的元素组成与赋存状态，发现在白云鄂博不同的矿床（氧化矿段，原生矿段，风化矿段）存在着三种颜色与可浮性均有所差别的钠辉石，其可浮性的差异主要是由于表面含铁量及Ca、Al等杂质含量的不同而引起的，结构Fe〓的存在导致钠辉石可浮性剧增从而与赤铁矿难以分离。

The rhombohedral pattern R of alite stabilized by certain impure ions is more hydrated.

阿利特或硅酸三钙，(C3S)固溶体是水泥熟料中最重要的矿物，某些杂质离子可以稳定其多晶型中的三方R型，具有较高的水化活性。

Objective:to study the probable degradation of flutamide under the condition of light, heat, acid, alkalic and oxidation,and to evaluate the ability of the analytical method to separate degradation products.methods: hplc method of related compounds of flutamide in ep5.0 was used and flutamide and impurity contents were calculated by percentage area method.

目的：研究氟他胺在高温、光照、酸性、碱性和氧化条件下可能发生的降解。方法：根据欧洲药典5.0（ep5.0）中氟他胺有关化合物的hplc测定方法，以百分面积法计算主成分含量和杂质含量。

A modified method was suggested to facilitate the extraction of alkaloidal salts as such from tablets by means of water,aqueous alcohol or other strong polar solvents.

可能代替药典中若干药物的法定含量测定方法，但须注意杂质影响。3。用水或醇自片剂中半微量法滤出有效成分，直接滴定，方法简便，可得满意结果。

The introduction of alkoxyl decreased the thermal stability of the polymers.

实验结果表明，烷氧基的引入降低了聚合物的热稳定性，聚合物中的杂质和结构缺陷对其热稳定性也有一定的影响。

Low pH is used to eliminate the adsorption of peptides and proteins to the inner surface of capillary. Ascorbic acid is used to avoid aminophenol from oxidation.

对于多肽和蛋白质样品中吸附现象，采用极端pH值的条件予以避免；对于分析存在易氧化杂质的氨基苯酚样品，采用了加入保护剂的方法，对于难溶的Bon acid样品，采用了加入有机添加剂的方法。

Experimental conditions that a great deal of copper matrices were separated as well as trace Se and Te were concentrated in ammoniacal solutions by co-precipitation separation were studied.

研究了采用共沉淀分离手段在氨性条件下分离大量铜基体并富集痕量硒、碲杂质的实验条件。

The absolute average error between experimental values and theoretically calculated values of zinc equilibrium concentration is 11.37% in ammoniacal ammonium chloride solution.

在浸出过程热力学计算的基础上，根据各杂质元素的精选配合物常数，计算出E_Me~(n+/Me-pH关系，绘制了Zn-NH_3-NH_4Cl-H_2O体系净化过程的E-pn图。

Ammoniojarosite can remove iron from the marinated solution entirely.

提取的硫化钴中除含有少量铬外未见其它杂质元素。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。