萃取分离法 meaning in English
extraction-separation method
Examples
- Having compared all separating ways , the authors made a proposal to refine n - heptane and reclaim methylcyclohexane from 120 solvent oil by using composite extraction separation
研究比较各种分离方法，提出了用复合萃取分离法从120号溶剂油中分离出正庚烷并回收甲基环己烷的方案。 - At present , liquid - liquid extraction common ultraviolet spectrophotometry method is used for the analysis and examination of such medicine . the separating method of liquid - liquid extraction is overelaborate and waste solution . the recoveries are low
对于该类药物的分析检测，目前主要采用液液萃取普通紫外光谱测定法，液液萃取分离法操作繁琐、费溶剂、药物萃取率低，杂质去除不彻底。 - Because the concentration of zirconium in uranium has large ranges , from 1 . 50xlo ' 6 - 3 . 8g / gu , not only how to decrease the remainder of uranium to eliminate its determinate effect but also how to acquire higher recovery of zirconium is considered , so the method of silica gel , the method of tbp levextrel resin chromatography , the method of tta chromatography and the method of tta extraction are compared . then tta extraction is chosen to acquire the ideal separation purpose . compared with icp - ms and icp - aes , xrf has characters of high repeatability , stability , low cost , high concentration elements analysis , the ability to determinate solid sample and having comprehensive practicability , but xrf has lower sensitivity , so how to increase the concentration of the sample to acquire better precision is a difficult problem , the optimum of operating condition : the integral time of spectral lines is 60s , the integral time of background lines is 20s , the voltage of xrf is 50kv , the electric current is 50ma
由于铀中锆的含量范围很广，从1 . 50 10 ~ ( - 6 ) 3 . 8g / gu ，在分离和测量时，既要考虑尽量地减少铀的残留量以消除铀对锆测量产生的影响，又要获得锆的理想的回收率，因此本文在分离方法的选择上比较了硅胶吸附分离法， cl - tbp萃取色层法， tta萃取色层法和tta萃取分离法的优缺点，认为tta萃取分离法可以达到理想的分离效果。 - A quantitative pretreatment scheme suitable to gc - ms analysis of bio - oil was proposed for the first time in china , and an extensive determination of the chemical composition of bio - oil fractions was performed by means of gc - ms coupling . these studies were crucial for the upgrading and utilization of bio - oil . using some novel designing method , which are suitable to biomass and pyrolysis characteristics , were applied in designing the fluid bed biomass flash pyrolysis system
并且率先在国内提出了适合于gc - ms分析的生物油的量化预处理方案(液?液萃取分离法) ，得出了各个组分(酸组分、碱组分、极性中性组分以及碳氢组分)在生物油中所占的份额，并对预处理所得的各个组分分别进行了gc - ms分析，鉴定出了上百种化学成分。