对混合溶剂与单用轻汽油的浸出效果作了对比。
Systematic comparisons between the extraction effects by using mixed solvent and by using hexane alone are made.
报道了一种通过测试折光率来回收混合溶剂的方法。
A method for recovery of mixed solvent by measuring refractive index is reported in this paper.
以乙醇和丙酮为混合溶剂合成了低分子量聚丙烯酰胺。
The synthesis of the low molecular weight polyacrylamide was imvestigated in the mixed solvents of ethanol and acetone .
侧重介绍乙醇轻汽油混合溶剂一次浸出棉仁脱酚工艺。
Stress on summerize technology of direct extraction of cottonseed kernels and de gossypol with alcohol commercial hexane mixed solvent.
选用混合溶剂与适当树脂单体合成快干丝网印刷调墨油。
The quick drying screen printing varnish was made from the adaptable resin monomer and the mixed solvent.
以乙醇氯化钙混合溶剂制备的粉末内部具有多孔结构;
The powder had porous structure by means of the mixture solvent of alcohol and calcium chloride.
用混合溶剂提取法研究催吐萝芙木水溶性生物碱的浸提工艺。
Extraction processes for water soluble alkaloids from Rauvolfia vomitoria Afzel with various mixed solvent systems were described.
本文研究了硅胶和活性炭从二元混合溶剂中吸附苯甲酸和蒽。
In this paper, we have studied the adsorption of benzoic acid and anthracene from binary mixed solvents; on silica gel and activated carbon.
本文论述了利用混合溶剂——结晶法提纯除虫脲的分析技术。
The method was established for purification of diflubenzuron by crystal technique with mixed solvents.
本工作把醋酸纤维素溶解于丙酮-甲酰胺混合溶剂中,随后制成膜。
Cellulose acetate (ca) ultrafiltration membranes are made from casting solutions obtained by dissolving ca in acetone-formamide mixed solvent.
研究了混合溶剂法分级分离棕榈酸果糖单酯和棕榈酸果糖双酯的工艺。
The fractionation separation of fructose monopalmitate and fructose dipalmitate by extraction with mixed organic solvent were performed.
用氯仿与苯甲醚混合溶剂提取斑蟊素和配标样,重现性好,提取效率高。
The mixture of chloroform and anisole is used to replace chloroform or acetone with better results in cantharidin abstraction efficiency and reappearance.
在纯丙酮和低含水量的混合溶剂中,对羟基苯甘氨酸硫酸盐溶解度很低。
It is found that the solubility of dl-p-HPGS is very small in pure acetone and in the solvent with low water content.
认为在混合溶剂的富水区大块的似冰山结构的水分子簇的寿命大大延长。
It is considered that the life of the bulky iceberg - like water clusters is lengthened greatly in the region rich in water.
它的最大发射波长随溶液浓度的增大发生红移,与混合溶剂的配比无关。
The largest emission peaks are not influenced by the proportion of solvents.
HPMC可溶在某些有机溶剂中,也可溶解在水-有机溶剂的混合溶剂中。
HPMC can dissolve into some organic solvents and the mixed solvent of water and organic solvent.
对贵州六枝高硫煤在水-甲醇混合溶剂中的碱性电解脱硫规律进行了研究。
Theelectrolytic desulfurization behavior of Guizhou Liuzhi high sulfur coal has been investigated in water methanol using sodium bydroxid as supporting electrolyte.
实验表明在甲苯和丁酮的混合溶剂中进行反应能显著提高TBHQ的选择性;
The results showed that the selectivity of TBHQ increased by using a mixture of toluene and butanone.
氯丁胶粘剂的低毒混合溶剂的选择原则是:根据溶剂的氢键指数及溶解度参数。
The selection principal of low toxic mixed solvent of CR adhesive is depended upon hydrogen bond index and solubility parameter of the solvent.
以水乙醇混合溶剂作分散剂,采用半干法合成工艺,制备了高取代度阳离子淀粉。
The cation starch with high substitute degree was prepared based on the half dry technology, and the dispersing agent was the mixture of water and alcohol.
采用表面修饰的方法在水醇的混合溶剂中制备出了在空气中性能稳定的纳米铁硫簇。
Steady Iron_sulfur nanoclusters were synthesized in the mixed solvent of water and ethanol with surface modification method.
摘要选择不同的混合溶剂体系考察部分相容的环氧树脂和丙烯酸树脂的自分层行为。
The self-stratifying behavior between epoxy resin and acrylic resin is investigated in different blend solvents.
与单一溶剂相比,在混合溶剂中反应,可提高果糖溶解度,增加酶活,缩短反应时间。
Compared with single solvent, suitable mixed solvent could improve solubility of fructose, increase enzyme activity and shorten reaction time.
试验结果表明,混合溶剂较单一溶剂对紫胶的溶解性能好,胶液粘度低,漆膜干燥快。
It has shown that mixed solvent is more effective for the shellac than single solvent resulting in a low viscous solution and fast dry film.
试验结果表明:混合溶剂对废水中的醋酸有较高的萃取率,反萃取效果为98.4%。
Results show that the mixed solvent can give high distribution extraction rate for acetic acid wastewater. Back extraction rate was 98. 4%.
采用混合溶剂,用电位滴定法测定壬基酚聚氧乙烯醚磷酯酯中单酯、双酯、磷酸的含量。
The content of mono-ester, di-ester and phosphoric acid in phosphate polyoxyethylene nonylphenol were reported with mixed-solvents by potentiometric titration.
使用混合溶剂溶解SBS,用增黏树脂和改性剂使之改性,在常温下生产SBS防水涂料。
SBS dissolved in the mixed solvent, with the modification by tackifying resin, SBS waterproof coating was prepared under normal temperature.
而从具有最低恒沸点的混合溶剂中吸附溶质时,吸附量与溶剂组成的关系与直线呈负偏差。
From constant boiling mixtures with a minimum, the adsorption of solutes also varies with the composition of mixed solvents, but a negative deviation is observed.
经氯仿:甲醇(4:1)混合溶剂索式提取的贝母药材HPLC图谱效果最好,其它次之。
Furthermore, we found the best HPLC spectrum of Fritillaria Jilin was soxhlet method with the solvent of chloroform and methanol (4:1), the others were no better than it.
通过使用一定配比的乙醇和四氢呋喃作混合溶剂,第一次培养出尿素和间甲酚的复合物单晶。
The complex crystal ofm-cresol and urea has been firstly cultivated by using a mixed solvent including ethanol and THF at a proper ratio.
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