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extraction yields
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  提取率
     Extraction yield of 64.1% is obtained by dualfrequency,while extraction yields are 36.8% and 19.0% by using single frequency ultrasounds of 25kHz and 40kHz,respectively.
     25kHz与40kHz双频超声时的提取率为64.1%,单频25kHz及40kHz时的提取率分别为36.8%和19.0%,双频超声强化的提取率显著高于单频超声强化的提取率
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     The extraction yields of total flavonoids by using the four extraction methods are 43.7, 48.2, 42.7 and 34.7 mg/g , and total saponins are 60.2, 61.5, 59.8 and 46.5 mg/g respectively.
     各种提取方法总黄酮的提取率分别为43. 7、48. 2、42. 7和34. 7mg/g; 总皂苷的提取效率分别为60. 2、61. 5、59. 8和46. 5mg/g.
短句来源
     With different RMV,DHA and EPA extraction yields by ultrasound extraction 1h at 1:4.5 of RMV were 79.48% and 81.52% respectively.
     不同料液比时,当料液比为1:4.5,超声法提取1h,DHA和EPA的提取率分别为79.48%、81.52%;
短句来源
     Under the same RMV,the extraction yields by ultrasonic extraction 1h at 55 C were higher by 25%~44% than that by solvent extraction 2h at 65 C.
     相同料液比时,55℃超声法提取1h比65℃溶剂法提取2h的DHA和EPA提取率提高25%~44%。
短句来源
     the yields of crude extract were 5.86, 6.36, 6.86, and 3.80,respectively. Using HPLC to quantitatively determine the mass fractions of the first three azadirachtin, extractionyields were 0.54, 0.55, and 0.48, respectively.
     结果粗提物的提取率依次为5.86%、6.36%、6.86%、3.80%,用高压液相法定量测定前3种印楝素的质量分数,计算提取率依次为0.54%、0.55%、0.48%。
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  “extraction yields”译为未确定词的双语例句
     The extraction yields of the optimum process by ME,UE and IEE were 2.07%,1.90% and 1.78% respectively,the average recoveries were 100.60%,105.12% and 99.92%,and the RSD were 1.40%,1.47% and 1.16%,respectively.
     结果表明,微波萃取法、超声波萃取法、内部汽化法的最优方案的收率分别为2.07%,1.90%,1.78%,平均回收率分别为100.60%,105.12%,99.92%,相对标准偏差分别为1.40%,1.47%,1.16%。
短句来源
     RESULTS:The extraction yields of methyl acetate,ethyl acetate and butyl acetate extracting solvents in single-stage extraction were 33.55%,29.53%and 17.18%,respectively.
     结果不同萃取剂单级萃取的萃取率大小顺序为乙酸甲酯>乙酸乙酯>乙酸丁酯,分别为33.55%、29.53%、17.18%;
短句来源
     Result The extraction yields was 0.011% and 0.016% by methanol and ethanol.
     结果干海星体壁总皂苷产率分别为0.011%和0.016%;
     Experimental results indicated that the extraction yields of sunflower seed oil using sub-critical carbon dioxide could be obviously enhanced by ultrasonic field. After extracting 240 minutes,extraction yields with ultrasound(100 W/L,4 s/6 s) and without ultrasound were 94.81% and 74.82% under 25 MPa,30 ℃ and 3 L/h,respectively.
     实验结果表明,超声场能够明显提高亚临界CO2萃取葵花籽油萃取率,在压力为25 MPa、温度为30℃、流速为3 L/h时,萃取240 m in后超声作用(100W/L、4 s/6 s)和未加超声的萃取率分别为94.81%和74.82%;
短句来源
     The extraction yields was 10.5%.
     在此条件下,八角茴香萃取物得率为10.5%。
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  相似匹配句对
     The extraction yields was 10.5%.
     在此条件下,八角茴香萃取物得率为10.5%。
短句来源
     Methods:Comparision of extraction yields between the traditional and new method.
     方法:人类基因组DNA提取传统方法和改进方法.
短句来源
     THE EXTRACTION OF MONASCOURUARIN
     红曲霉色素的提取
短句来源
     Extraction of the Nicoline
     烟碱的提取
短句来源
     9' rapeseeds from yields.
     证明该SCAR标记可以应用于“蜀杂9号”生产种的杂交纯度的鉴定工作之中。
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  extraction yields
The extraction yields increased as CO2 density increased with a pressure rise at constant temperature.
      
Nuclear fuel reprocessing requires high acidity levels that should be accurately and rapidly controlled in order to optimize extraction yields and process efficiency.
      
Total carbon measurements were performed for the aerosols in 1996 and the extraction yields are given.
      
Extraction yields were relatively high for the14C materials (up to 11% of residual soil14C for 6 weeks maize) illustrating the water soluble character of the freshly added material.
      
Recovery experiments on simulated samples spiked with 14C-labeled sodium carbonate, sodium acetate and sodium formate, showed extraction yields of 94-98%.
      
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The results of laboratory research shew that pressure fluid extrac-tion(PFE)is an effective technique for separating mineral matter from coal liquid and recovering coal-derived liquid products of low volatility.During extracting vacuum still bottom and hydrocyclone underflow of H-coal process,coal liquid could be clearly divided into deashed liquidproducts of ash yield less than 0.05% and ash-rich residue with ash yield greater than 60%.A favorable result was also obtained from PFE of SRC process feed. n-Nonane,toluene,p-xylene,ethylbenzene,tetrahydrofuren,p-cre-sol...

The results of laboratory research shew that pressure fluid extrac-tion(PFE)is an effective technique for separating mineral matter from coal liquid and recovering coal-derived liquid products of low volatility.During extracting vacuum still bottom and hydrocyclone underflow of H-coal process,coal liquid could be clearly divided into deashed liquidproducts of ash yield less than 0.05% and ash-rich residue with ash yield greater than 60%.A favorable result was also obtained from PFE of SRC process feed. n-Nonane,toluene,p-xylene,ethylbenzene,tetrahydrofuren,p-cre-sol and pyridine were employed as the solvents of pressure fluid extrac-tion.It was shown that the aromatics above-mentioned were quite suita-ble solvent when extraction under the conditions of 100 arm and 350℃.The extraction yields of toluene,p-xylene and ethylbenzene were ex-tremely near to that of pyridine.The PFE yield was rather higher than theyield extracted by the same solvent in soxhlet apparatus.As suggested,a part of toluene insolubles was converted into toluene-solubles in the

实验室研究结果表明,压力流体萃取是从煤液中分离矿物质和回收低挥发度煤衍生液体产物的有效技术。在萃取氢-煤法减压蒸馏釜液或水力旋风分离器底流物时,这些重质物料可分离成灰分在0.05%以下的低灰液体产品和灰分达60%以上的富灰残渣。以溶剂精炼煤法所得的滤料作为萃取原料时,也得到了良好的结果。分别采用正壬烷、甲苯,乙苯、对二甲苯、四氢呋喃、对甲酚和吡啶作为压力流体萃取用的溶剂,在100大气压和350℃条件下萃取时,上述溶剂中芳香烃是适宜的溶剂。用甲苯、乙苯或对二甲苯萃取时,萃取物收率均非常接近于用吡啶的萃取物收率,而且比用相应溶剂在索氏萃取器中所得为高。可以设想,在压力流体萃取过程中,有一部分甲苯不溶物转化成甲苯可溶物。

A method for extraction and isolation of humic substances (HS) from marine sediments is described, and the physical and chemical properties of each humic fraction isolated are also summarized.1.The yield of humic substances from sediments using 0.5 mol/L NaOH solution was rather low, because there were a large quantities of calcium, magnesium, iron, aluminium etc in them. When the 0.5 mol/L NaOH solution was substituted by 0.1 mol/L Na4P2O7 and 0.1 mol/L NaOH mixed solution, the extraction yield...

A method for extraction and isolation of humic substances (HS) from marine sediments is described, and the physical and chemical properties of each humic fraction isolated are also summarized.1.The yield of humic substances from sediments using 0.5 mol/L NaOH solution was rather low, because there were a large quantities of calcium, magnesium, iron, aluminium etc in them. When the 0.5 mol/L NaOH solution was substituted by 0.1 mol/L Na4P2O7 and 0.1 mol/L NaOH mixed solution, the extraction yield of fulvic acid (FA) increased more than two times and humic acid (HA) more than ten times.2.The HA, FA and ethanol-soluble matter of marine sediments fractionated by the methods mentioned in this paper were physically characterized by IR-absorption spectra, UV-ab-sorption spectra and 1H-NMR spectra and chemically by elementary analysis, amino acid analysis, gel permeation chromatography and the analysis of oxygen-containing functional groups. The results indicated that notwithstanding the origins of humic substances in marine sediments were different from those in soil and seawater, their chemical composition and some properties were similar, only their contents of oxygen-containing functional groups and distributions of molecular weight show some obvious difference.

用Na_4P_2O_7和NaOH混合液对青岛胶州湾海底沉积物中的腐植质进行了萃取和分级。对分离出的腐植质中各级分,腐植酸(HA)、富里酸(FA)和乙醇可溶物(ES),测定了元素含量、酸性官能团含量、氨基酸含量、分子量范围、可见光吸收、紫外吸收、红外吸收、~1H-NMR光谱等物理和化学性质。

A new technique for the recovery of Pd from 7701, PGC, C_2 and C_3 catalyst scraps was described. The effects of the roasting temperature, acidity and temperature of leaching solution on the recovery of Pd were studied, and the optimum operating conditions were determined to be 600℃, 6N HCl and 105℃ respectively. The extraction yield of Pd in excess of 94% was obtained.

叙述从7701、PGC、C_2、C_3失效催化剂中回收Pd的新工艺。研究焙烧温度、浸出酸度和温度对Pd浸出率之影响,最后获取Pd的实收率>94%的良好指标。

 
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