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分级萃取
相关语句
  fractional extraction
     Study on Supercritical Fluid Fractional Extraction of n-Alkanes and Polycyclic Aromatic Hydrocarbons in Environmental Spiked Samples
     超临界流体分级萃取正构烷烃和多环芳烃
短句来源
     Study on Supercritical Fluid Fractional Extraction of n Alkanes and Polycyclic Aromatic Hydrocarbons in Environmental Spiked Samples
     超临界流体分级萃取正构烷烃和多环芳烃
短句来源
     Fluid fractional extraction of n alkanes and polycyclic aromatic hydrocarbons(PAHs) in environmental spiked samples were carefully and systemaicatlly studied using CO 2 as supercritical fluid. The effects of pressure,temperature and volume of CO 2 on the fractional efficicy were investigated.
     本工作用超临界CO2对环境模拟样品中的正构烷烃和多环芳烃的超临界分级萃取方法及超临界CO2的压力,温度和用量对分级效率的影响进行了详细的研究。
短句来源
     Fluid fractional extraction of n alkanes and polycyclic aromatic hydrocarbons(PAHs) in environmental spiked samples were carefully and systemaicatlly studied using CO 2 as supercritical fluid. The effects of pressure,temperature and volume of CO 2 on the fractional efficicy were investigated.
     本工作用超临界CO2对环境模拟样品中的正构烷烃和多环芳烃的超临界分级萃取方法及超临界CO2的压力,温度和用量对分级效率的影响进行了详细的研究。
短句来源
  “分级萃取”译为未确定词的双语例句
     the optical purity of the product in the outflow is above 90% through 11 hollow fiber membrane modules with 22 cm length.
     用中空纤维支载液膜双有机相逆流分级萃取技术 ,11个 2 2cm长膜器串联 ,产品光学纯度达 90 %以上。
短句来源
     Results indicated that n alkanes and PAHs can be extracted successfully under condition of lower pressure and temperature (8 0 MPa,50℃) with a recovery range of 99 94% to 59 28% for n C 10 to C 18 ,and almost no PAHs are extracted.
     结果表明,在低压、低温下(80MPa,50℃)能成功地分级萃取正构烷烃和多环芳烃,其C10~C18的萃取率为99.94%~59.28%,而多环芳烃基本未被萃取。
短句来源
     Then the chloroform extract was concentrated under vacuum to yield a red-brown gum. This material was partitioned with 5% NaHCO3 、Na2CO3 、NaOH in turn.
     粗提物依次用5% NaHCO3、Na2CO3、NaOH 进行分级萃取,并对3种萃取液分别进行浓缩,冷冻干燥后,记为PⅠ、PⅡ、PⅢ。
短句来源
     Results indicated that n alkanes and PAHs can be extracted successfully under condition of lower pressure and temperature (8 0 MPa,50℃) with a recovery range of 99 94% to 59 28% for n C 10 to C 18 ,and almost no PAHs are extracted.
     结果表明,在低压、低温下(80MPa,50℃)能成功地分级萃取正构烷烃和多环芳烃,其C10~C18的萃取率为99.94%~59.28%,而多环芳烃基本未被萃取。
短句来源
     Soybean Classified Extraction
     大豆分级萃取
短句来源
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  相似匹配句对
     Soybean Classified Extraction
     大豆分级萃取
短句来源
     Fractionated extraction and composition of coal
     煤的分级萃取与组成
短句来源
     HOP EXTRACTION
     啤酒花的萃取
短句来源
     GRADING OF TITANIUM DIOXIDE
     二氧化钛的分级
短句来源
     Solid Phase Extraction
     固相萃取
短句来源
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  fractional extraction
Fractional extraction of chitosan hydrolysate by aqueous ethanol (ethanol:distilled water) yielded fractions with molecular weights in the range 3.2-26.4 kDa.
      
The polysaccharides were isolated from the biomass by fractional extraction and purified by precipitation or ion exchange chromatography.
      
Based on chemical thermodynamic theory, racemic ofloxacin is separated in chiral systems by hollow fiber liquid-supported membrane technology combining with countercurrently fractional extraction.
      
Fractional extraction was carried out and four fractions were obtained.
      
Sympathetic activation was not restricted to the affected limb, since femoral and cubital venous norepinephrine levels were not different and plasma epinephrine fractional extraction (PEFE) was not altered by angiopathy.
      
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A procedure for the fractionation of sulphur in soil and river sediment samples was developed involving sequential extraction and inductively coupled plasma-atomic emission spectrometry using SI 180.74 nm line. The inorganic sulphur including water soluble, NaH2PO4 extractable, acid digestible and acid volatile sulphur, as well as organic sulphur were fractionated using this method.

建立了土壤和河流沉积物中硫的形态分析方法。应用分级萃取技术分离水溶性硫、吸附性硫、盐酸可溶性硅和盐酸挥发性硫;用电感耦合等离子体发射光谱法测定不同形态硫和总硫,由差减法测得有机硫。该方法的优点是操作简单,可应用于大批土壤和河流沉积物中不同形态硫的测定。

Fluid fractional extraction of n alkanes and polycyclic aromatic hydrocarbons(PAHs) in environmental spiked samples were carefully and systemaicatlly studied using CO 2 as supercritical fluid.The effects of pressure,temperature and volume of CO 2 on the fractional efficicy were investigated.Results indicated that n alkanes and PAHs can be extracted successfully under condition of lower pressure and temperature (8 0 MPa,50℃) with a recovery range of...

Fluid fractional extraction of n alkanes and polycyclic aromatic hydrocarbons(PAHs) in environmental spiked samples were carefully and systemaicatlly studied using CO 2 as supercritical fluid.The effects of pressure,temperature and volume of CO 2 on the fractional efficicy were investigated.Results indicated that n alkanes and PAHs can be extracted successfully under condition of lower pressure and temperature (8 0 MPa,50℃) with a recovery range of 99 94% to 59 28% for n C 10 to C 18 ,and almost no PAHs are extracted.Under pressure of 26 0 MPa and temperature of 80℃ PAHs can be effectively extracted.

本工作用超临界CO2对环境模拟样品中的正构烷烃和多环芳烃的超临界分级萃取方法及超临界CO2的压力,温度和用量对分级效率的影响进行了详细的研究。结果表明,在低压、低温下(80MPa,50℃)能成功地分级萃取正构烷烃和多环芳烃,其C10~C18的萃取率为99.94%~59.28%,而多环芳烃基本未被萃取。当压力升至26.0MPa、温度升至80℃时,可有效地萃取多环芳烃,实现了正构烷烃和多环芳烃的有效分离

Fluid fractional extraction of n alkanes and polycyclic aromatic hydrocarbons(PAHs) in environmental spiked samples were carefully and systemaicatlly studied using CO 2 as supercritical fluid.The effects of pressure,temperature and volume of CO 2 on the fractional efficicy were investigated.Results indicated that n alkanes and PAHs can be extracted successfully under condition of lower pressure and temperature (8 0 MPa,50℃) with a recovery range of...

Fluid fractional extraction of n alkanes and polycyclic aromatic hydrocarbons(PAHs) in environmental spiked samples were carefully and systemaicatlly studied using CO 2 as supercritical fluid.The effects of pressure,temperature and volume of CO 2 on the fractional efficicy were investigated.Results indicated that n alkanes and PAHs can be extracted successfully under condition of lower pressure and temperature (8 0 MPa,50℃) with a recovery range of 99 94% to 59 28% for n C 10 to C 18 ,and almost no PAHs are extracted.Under pressure of 26 0 MPa and temperature of 80℃ PAHs can be effectively extracted.

本工作用超临界CO2对环境模拟样品中的正构烷烃和多环芳烃的超临界分级萃取方法及超临界CO2的压力,温度和用量对分级效率的影响进行了详细的研究。结果表明,在低压、低温下(80MPa,50℃)能成功地分级萃取正构烷烃和多环芳烃,其C10~C18的萃取率为99.94%~59.28%,而多环芳烃基本未被萃取。当压力升至26.0MPa、温度升至80℃时,可有效地萃取多环芳烃,实现了正构烷烃和多环芳烃的有效分离

 
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