萃取剂

The characteristics of five different phosphinic impregnated resins adsorbing heavy rare earth elements in hydrochloric acid are studied by static method.

利用静态法研究了5种不同膦类萃取剂的浸渍树脂在盐酸介质中对重稀土的吸附行为。

The extraction conditions were optimized by orthogonal test on the basis of single factor test.

在单因素试验的基础上通过正交试验优选出最佳微波辅助提取工艺条件为微波萃取剂40%乙醇溶液、微波辐射时间50s、提取时间50min、提取温度70℃。

Nano-TiO_2 has become an excellent solid sorbent due to its good physical and chemical characteristics.

而由于纳米TiO_2具有优良的理化性质和应用效能，现已成为一种倍受重视的固相萃取剂。

A novel method was established for the preparation of solid phase extractor by modified xylenol orange onto silica gel.

制备了二甲酚橙键合硅胶固相萃取剂，研究了它对常见重金属离子的分离富集行为，发现对水中痕量Hg2+有较好的选择性分离富集效果。

A molecularly imprinted solid phase extractant, particularly for the recognition of diphenylguanidine was prepared using diphenylguanidine as the template and bulk polymerization.

以二苯胍为模板分子，用本体聚合法合成了对二苯胍具有良好识别能力的分子印迹固相萃取剂。

N,N- bisdithiocarbamate nickel have been synthesized in good yield by electrochemical oxidation of sacrificial anodes in one - chamber cell with a mixture of carbon disulphide plus dibutylamine.

烷基硫代氨基甲酸类及其与金属离子的配合物一直是无机化学中研究的热点领域之一1工】，该类物质可作为液一液萃取剂且具有一些药物的功能。

The process of esterification of propylene glycol monomethyl ether with acetic acid to synthesize propylene glycol monomethyl ether acetate is investigated using 98% sulfuric acid as catalyst.

研究了以浓硫酸为催化剂，丙二醇甲醚和醋酸酯化合成丙二醇甲醚醋酸酯的过程，考察了醚和酸比例、催化剂用量等因素对反应的影响，并选择甲苯为水萃取剂。

A polymer that had the highest binding selectivity and capability was used as solid-phase extraction sorbents for direct extraction of TBZ from different biological and environmental samples (cabbage, pannage, shrimp, orange juice and tap water).

三、以合成最优的戊唑醇分子印迹微粒作为固相萃取剂，检测包菜、饲料、虾肉、桔汁、水中痕量的戊唑醇。

ABSTRACT Investigation on the Structures and Structure-Activity Relationships for Acidic Phosphonate Rare Earth Extractants Molecular dyna...

用分子动力学模拟退火方法、半经验量子化学方法（PM3）研究了28种烃基磷酸酯系列萃取剂的三维空间结构和电子结构。

A new method for the total analysis of the polybasic acid s and higher fatty acids in hawthorn fruit by gaschromatography-mass spectrometrywas developed.

采用硫酸甲酯化处理山楂果样品，二氯甲烷作萃取剂，用气相色谱-质谱联用法对山楂果中的多元酸和高级脂肪酸进行了全面分析。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。