1) selective extraction
选择性萃取
1.
Based on chiral ligand exchange,the selective extraction of mandelic acid enantiomers in the emulsion liquid membranes system using copper(Ⅱ) N-n-dodecyl-L-hydroxyproline as chiral selector was studied.
基于手性配体交换反应,研究了在含有N-n-十二烷基-L-羟基脯氨酸和铜离子的配合物为手性配体的乳状液膜体系中选择性萃取扁桃酸对映体。
2.
The separation of chemical components of freshwater surface coatings, developed in different natural waters, was carried out by means of selective extraction technique, and the results obtained were compared and the serviceability of the selective extraction technique was discussed by comparing the extraction efficiencies.
利用选择性萃取分离技术对不同淡水中培养的生物膜主要化学组分 (铁氧化物、锰氧化物和有机质 )进行选择性萃取分离 ,通过比较其萃取效率 ,讨论了选择性萃取分离技术的适用
3.
Class selective extraction has been performed by varying the pressure.
用乙醇改性的超临界CO2 ,经过压力分级步骤选择性萃取白术挥发油中的不同族组分 ,在低压 (12 0MPa)条件下完成对其中的 β 榄香烯的萃取 ,并且将其在萃取物中的质量分数由高压下的 4 8%提高到低压下的 8 0 % ,萃取率达 94 2 % ,同时降低了对设备的要求。
2) extraction selectivity
萃取选择性
1.
The extraction selectivity of aqueous ethanol for monoglyceride to diglyceride is better at higher water concentration,higher extraction temperature and lower glycerides load.
结果表明,乙醇水溶液可方便有效地萃取酯化产物中的副产物单甘酯,萃取选择性随温度的增加、载荷量的减少、萃取剂中水含量的加大而增加。
2.
The extraction selectivity of aqueous ethanol formonoglyceride to diglyceride is better at higherwater concentration,higher extraction temperature and lower glycerides load.
结果表明, 乙醇水溶液可方便有效地萃取酯化产物中的副产物单甘酯,萃取选择性随温度的增加、载荷量的减少、萃取剂中水含量的加大而增加。
3) chiral-selector extraction
手性选择剂萃取
4) selective extraction technology
选择性萃取技术
5) selective chemical extractants
选择性萃取剂
6) selective stripping
选择(性)反萃取
补充资料：连续性与非连续性(见间断性与不间断性)
连续性与非连续性(见间断性与不间断性)
continuity and discontinuity
11an父ux泊g四f“山。麻以角g、.连续性与非连续性(c。nt，n琳t:nuity一)_见间断性与不间断性。and diseo红ti-
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条