extractant

英[ɪks'træktənt] 美[ɪks'træktənt]

n. 萃取剂(分馏物；提取剂)

extemporal adj.无准备的(即席的；临时的；权宜之计的)
extemporary adj.当场的；即兴的
extempore adj.即兴的；当场的adv.即席地；无准备地
extemporise vt.当场作成
extemporize v.即席演说；即兴演奏；当场作成=extemporise（英）.

1. P204 was used as extractant and sulfonated kerosene was used as thinner in the experiment.: 实验用P204做萃取剂，用磺化煤油做稀释剂。

2. The results show that the new extractant has more capability of extracting uranium than TBP.: 证明该种萃取剂萃取铀的能力强，若用它代替TBP，将能取得明显的效果。

3. These results are discussed by the aid of the IR spectra of extractant and extracted species.: 根据萃取剂和萃合物的红外光谱对上述结果进行了讨论。

4. Ethyl acetate is an excellent solvent and extractant and is an important chemical material too.: 乙酸乙酯是性能优良的溶剂、萃取剂和重要的化工原料。

5. Objective To evaluate in vitro antibacterial activity of Galla Chinensis ethanol extractant against s.: 目的观察五倍子乙醇提取物对肠球菌的体外抗菌活性。

6. Objective To evaluate antibacterial activity of Galla Chinensis ethanol extractant against Enterocci in vitro.: 目的观察五倍子乙醇提取物对肠球菌的体外抗菌活性。

7. The distribution coefficient D indicated: Ethyl acetate was the most suitable extractant for CGA s purification.: 萃取分配系数D测定结果表明，醋酸乙酯是纯化绿原酸的适用溶剂。

8. It was demonstrated that the water extractant of Longjing tea had powerful ability to clear off hydroxyl radicals.: 龙井茶水提液对羟自由基具有较强的清除作用。

9. The plant practice shows this recovered extractant can be re-used and the extractant consumption can also be reduced.: 经生产实践验证能有效恢复萃取剂性能并降低萃取剂单耗。

10. Extraction of copper using N902 extractant from hydrochloric acid medium by atomized extraction way was investigated.: 用N902萃取剂采用雾化萃取方式对盐酸介质中铜的萃取进行了研究。

11. The results showed that the proper organic solvent and extractant were sulfonated kerosene and trialkyl phosphine oxide.: 结果表明，较合适的溶剂和萃取剂分别为磺化煤油和三烷基氧膦。

12. The correlation didn't reach significant level. 0.2 molL-1 K2SO4 wasn't the suitable available Se extractant for paddy soil.: K2SO4对土壤硒的浸提量低，与植株含硒量间的相关性不显著，不适宜作水稻土有效硒的提取剂。

13. The results show that it is inefficient to use diisopropyl ether as extractant to extract hydroquinone from water isothermally.: 结论是：等温下用二异丙基醚萃取水中对苯二酚并不很有效。

14. The method of synthesizing N, N′-diphenylmalonamide employing aniline and malonic ester and pyridine as extractant was investigated.: 以对苯胺、丙二酸二乙酯为原料、吡啶为溶剂合成N，N'-二苯基丙二酰胺的方法进行了研究。

15. Inspected the influence of the balance aqueous phase acidity, duration of oscillation, the extractant concentration to the extraction.: 分别研究了振荡时间、萃取剂浓度、平衡水相酸度对萃取的影响。

16. The trialkyl phosphine oxide (TRPO) has been used for extractant of radioactive waste and chemical separation process of organic acid.: 三烷基氧膦(TRPO)用于做放射性废液和化学分离过程的萃取剂。

17. Molecular interactions between extractant DAMP and water in Benzene have been studied by means of dielectric polarization measurement.: 用介电法研究萃取剂DAMP与水分子的缔合作用。

18. A solvent was used as gold extractant and a sort of compound back extract reducer was used for reduction at one step in normal temperature.: 用某溶剂作为金萃取剂，用某复合反萃还原剂在常温条件下进行一步还原；将箱式混合澄清槽经改进后作为萃取器。

19. The method that using n-hexane as an extractant had a little injure to lab assistant, as compared with CCl_4 used by GB/T16488-1996 method.: 使用正己烷作为萃取和测试溶剂，同国标方法（GB/T16488-1996）所用的四氯化碳相比可减少对测试人员的伤害。

20. The inner chamber is adapted to contain the other of the feed solution and the liquid extractant within a lower portion of the inner chamber.: 该内室用于在该内室下部中容纳萃取进料和液体萃取剂中的另一种。

21. Now in China GB/T16488-1996 regards infrared spectrometry as the first method to determine oil centent. CCL4 is the extractant in this method.: 目前国标GB/T16488—1996测油以红外分光光度法为第一方法，该法用CCL4 作萃取剂。

22. Optimum volume fraction of extractant B in binary-extractant is 60%-80%, and the highest cooperate coefficient is 1.28, which exists in this range.: 萃取剂体系中萃取剂B的适宜体积分数为60％—80％，且在该浓度范围内有协萃效应，最大协萃系数1.28。

23. The quality and the yield of 10-HAD are mainly influenced by alcohol concentration, alcohol volume, back extractant water quantity, and temperature.: 不同浓度、不同体积的乙醇对产率及质量有影响；不同体积的反萃取剂水对产率也有影响；不同温度对结晶有影响。

24. The structural variation of the hydrocarbyl groups in the extractant molecules has the different influences on the extractability of various metal ions.: 萃取剂分子中烃基结构的变化对各种金属离子的萃取能力有着不同程度的影响。

25. The research work has investigated the orderly aggregation phenomena of amine extractant molecules as well as their forming conditions in extraction system.: 本课题研究了胺类萃取体系中的分子有序现象及各因素的影响。

26. In this paper, a technology of multistage countercurrent extracting tea polyphenols (TP) from green tea with ethyl acetate as extractant was theoretically analyzed.: 对醋酸乙酯多级逆流萃取绿茶茶多酚(TP)的工艺过程进行了理论分析。

27. The result indicated that the assignment along with the balance aqueous phase acidity, the initial extractant concentration, and the duration of oscillation increases.: 结果表明，分配比随振荡时间、萃取剂初始浓度的增加而增加，随着平衡水相酸度的减小而增加。

28. Types of copper extractants at home and abroad are introduced in this paper. Then the performance, structure and use for different copper extractant are also summarized.: 简述了国内外铜萃取剂的类型，对不同类型萃取剂的性能、结构及使用进行了综述。

29. An experimental study was carried out to extract phenol from simulated wastewater containing phenol using tributyl phosphate (TBP) as extractant in an impinging stream reactor.: 以磷酸三丁酯(TBP)为萃取剂，用撞击流反应器对模拟含苯酚废水进行了萃取除酚的研究。

30. The basic studies, such as mechanism, thermodynamics and kinetics, on the acidic phosphorus-containing extractant and the ether extractant were performed for their good effect.: 酸性含磷萃取剂和醚类萃取剂对锆铪分离有较好的效果，对其萃取机制、热力学和动力学等基础性研究较多。

bifunctional extractant 双官能萃取剂...
acidic extractant 酸性萃取剂
basic extractant 碱性萃取剂
acid-bearing extractant 含酸萃取剂

extract extract nucleus extractive test extracted digit extractive rate extract content extracting seal extracting nail extracting rate Extract Operand extract furnace

展开全文

大家正在查

adsum是什么意思 adularia是什么意思 adulate是什么意思 adulation是什么意思 adulator是什么意思 adulatory是什么意思 adult是什么意思 adulterer是什么意思 adultery是什么意思 adulthood是什么意思

推荐文章

考试词汇

四级词汇六级词汇英专四级英专八级考研词汇 GRE词汇托福词汇雅思词汇

分类词汇

水果蔬菜花哺乳动物家畜家禽爬行两栖禽鸟鱼类壳类动物昆虫树鹰猪狗龙鸡鸭