溶劑分提 的英文怎麼說

中文拼音 [róngjìfēndī]
溶劑分提 英文
fractionation with solvent
  • 溶 : 動詞（溶化; 溶解） dissolve
  • 劑 : Ⅰ名詞1 （藥劑; 制劑） a pharmaceutical or other chemical preparation 2 （某些有化學作用的物品） a...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 提 : 提動詞（垂手拿著） carry （in one's hand with the arm down）
  • 溶劑 : dissolvant; solvent; resolvent; solventia; menstruum
  1. Methods the antioxidant of 75 % ethanolic extract and organic solvent extracts, water extracts and polysaccharids from acanthus ilicifolins l. was detected by flow - injection chemiluminescence, to evaluate the ability of scavenge h2o2

    方法採用流動注射化學發光法，研究該植物75 %乙醇提取物及其有機溶劑萃取分離部分、水提取物及多糖對過氧化氫（ h2o2 ）的清除作用。
  2. A method to calculate quantitatively the adsorption volume or adsorption space of per mass of adsorbent derived from both the adsorbed molecule volume and the maximum adsorbance of a solute in an adsorption isotherm under a given experimential condition is presented firstly for a solid / liquid adsorption system of the solute in a dilute aqueous solution. this method is suitable for not only mono - layer adsorption, but also mani - layer adsorption and micelle adsorpion of surfactant constructed by hydrophile and lipophile groups. therefore, the surface concentration of the adsorbate, cs, deduced from the adsorption volume is possessed of the meaning of true concentration, and the value of the patition coefficient of the adsorbate between solid and liquid phass, p, attained by the cs and the c, solution concentration of the adsorbate, can be accurate. the foregoing a set of calculations are presented for the solid - liquid adsorption systems consisted of the wool fiber and separately dodecyltrimethyl - ammonium bromide ( dtab ) and hexadecyltrimethyl - ammonium bromide ( ctab ) in this paper. this provides a strong basis for adsorption thermodynamic investigation of adsorbate

    對稀溶液中溶質的固/液吸附體系，首次提出了根據吸附分子體積和實驗條件下吸附等溫線中的最大吸附量計算單位質量吸附劑的吸附體積或吸附空間的方法.此法適用於單層吸附，也適用於多層吸附和具有親水親油結構的表面活性劑分子的膠團吸附.由此，吸附質的表面相濃度cs具有真實濃度的含義，相應地，計算得到的溶質的固/液分配系數p就有了準確值.分別計算由溴代十二烷基三甲銨（ dtab ）和溴代十六烷基三甲銨（ ctab ）與羊毛纖維構成的液/固體系分配系數等，為溶質吸附的熱力學研究奠定了基礎
  3. The anti - microbial activities of crude ethanol extract from aerial parts of sophora alopecuroides and its petroleum ether, chloroform, n - butanol and water fractions of sophora alopecuroides to pythium aphanidermatum, fusarium oxysporum f. sp. cucumerinum, fusarium oxysporum f. sp. lycopersici, alternaria solani, pseudomonas pachrymans and xanthomonas vesicatoria were tested by mycelial radial growth test and agar - well diffusion

    本實驗採用帶毒平板菌絲生長法和瓊脂打孔藥劑擴散法測定了苦豆子地上部分乙醇粗提物及其石油醚、氯仿、正丁醇和水層的不同極性溶劑萃取物對瓜果腐霉、黃瓜枯萎病菌、番茄枯萎病菌、番茄早疫病菌、黃瓜角斑病菌和番茄瘡痂病菌的抗菌活性。
  4. According to the frequently used methods of extraction and isolation of natural products from organic body, the freeze - dried ascidian tunica was exhaustively extracted with 100 % chloroform then the combined extracts were filtered and the solvent was separately concentrated under vacuum to yield a dark - brown gum

    按照目前比較常用的天然產物的提取分離辦法，將樣品冷凍乾燥后，用100氯仿浸泡，收集氯仿濾液，減壓蒸餾濃縮去除浸提溶劑，得到黑褐色的浸膏狀物質。
  5. Abstract : the total quantity of perylene quinonoids in hypocrella bambusae ( b. et br. ) sacc., shiraia bambusicola p. henn and culture substance of ascomycetes hypocreacae ( fr ) tul. sp. were determined with spectrophotometric methods. the relative extraction efficiency were studied when ethanol, acetone and chloroform were used as solvents. among them acetone was the best one

    文摘:用分光光度法測定了竹紅菌、竹黃和菌寄生菌培養物中?醌類化合物的總量；同時研究了以無水乙醇、丙酮和氯仿為溶劑提取?醌類化合物的相對效率，結果發現以丙酮為溶劑最合適。
  6. At 70c, dissolved time 60min, solvent ratio 125 : 50ml / g, the effect of benzene is best to separating phenanthrene of crude anthracene, phenanthrene content of crude anthracene is increased from 10. 3 % to 41. 7 %. at 120c, dissolved time 80min, the solvent ratio 75 : 30ml / g, the effect of dmf is best to separate carbazole from the compound of anthracene and carbazole, and in the high or common temperature when the compound is separated the solid content may be seen that anthracene content is almost. so, the common temperature is selected in the filtration of the experiment

    苯在70 』 c 、溶解時間60min 、溶劑比125 : 5oml / g ，對分離粗蔥中菲的效果最好，可以使粗蔥中菲的含量從10 . 3 %提到41 . 7 % 。 dmf在120 』 c 、溶解時間somin 、溶劑比75 : 30ml / g時，對分離蔥和咔哇混合物中咔哇的效果最好，並且從高溫和低溫下分離后得到固體含量可以看出，在這兩個溫度下過濾得到蔥的含量差不多，因此，本實驗選擇在常溫下過濾。
  7. For the separation of methanol / mtbe, the casting solvent mixtures were investigated in detail, it was found that the positive relationships between huggins parameter ( kh ) and permeation flux ( j ) were due to the casting solvent mixtures. thus, the separation performance could be improved by adjusting the casting solvent mixtures

    對于meoh mtbe體系的分離，本文在已有的研究基礎上，考察了鑄膜混合溶劑對膜分離性能的影響，發現第二溶劑的添加使膜的滲透通量j有所提高，並且j的增加值與鑄膜稀溶液的huggins參數kh成正相關。
  8. The merits and demerits of two kinds of devices in which extracted available compositions in ginkgo biloba leaves were compared by having used different menstruum

    摘要通過使用不同溶劑比較了兩種裝置提取銀杏葉中有效成分的優缺點。
  9. This paper studies the anti - oxidation activity of extract from perilla frutescens with alcohol in microbiological - paper test and oven - storage test

    摘要以乙醇為溶劑，從紫蘇中提取有效成分，採用微生物活性紙片法和烘箱法對紫蘇乙醇提取物的抗氧化活性進行研究。
  10. No probe leakage was found when the sensor dipped in ethanol and n - hexane for 15 days. this technique is limited for its prolix procession and request of special active function in the structure of molecular probe, sol - gel : the development of sol - gel technique provides a convenient way to incorporate molecular probe in porous inorganic material

    化學鍵合法：分子探針通過化學反應鍵合於固定相，在溶劑中不泄漏，提高了傳感器使用壽命，在乙醇和正己烷中浸泡15天，未見探針分子泄漏。但繁雜的過程和對探針分子結構的特殊要求限制這一方光纖化學傳感器、儀器系統的研製們比生物和環境監測中的應用（摘要） 2法的應用。
  11. The dual - bath coagulation method suggested by j. a. va n ' t hof could be used in membranes with high selectivity clearance rate of low - molecular weight substances and moderate water flux theoretically. therefore it may be applied in the field of hemofiltration. to improve and optimize the performance of the pes ultrafiltration membrane applied in the hf, here the flat membranes and hollow fiber ( hf ) membranes are made in certain conditions based on the dual - bath coagulation method where pes is used as the membrane material, dmso as solvent and pvp & peg as additives this paper includes five parts as follow : 1

    為了改善和優化聚醚碸超濾膜（單浴法）在血液過濾實際應用中的性能，本論文以j . a . van ' thof等提出的雙凝固浴法為基礎，以聚醚碸（ pes ）為主要成膜材料，以二甲基亞碸為溶劑，並添加一定分子量的致孔劑（ pvp ，聚乙烯吡咯烷酮）以及一定分子量的添加劑（ peg ，聚乙二醇）按照一定配比在一定溫度下製成透明均一的鑄膜液，靜置脫泡后在一定的工藝條件下製成聚醚碸平板膜和中空纖維膜，然後通過測試膜的結構和性能來評估其用於血液過濾中的前景。
  12. In order to study the influence factors of aoa of rose flowers, the effects of drying and extraction methods on the aoa of rose flowers were investigated. the results indicated that drying after high - temperature short - time pretreatment was rather effective to maintain their aoa ; the aoa of water extracts was stronger when the temperature was raised from 25 to 100 ; by using orthogonal test, the optimum extraction conditions of rose flowers were : solvent - 75 % ethanol ; ratio of material and solven - 1 : 10 ; extraction times - three times with 24 h at one time, at the room temperature. the extracts obtained by 75 % ethanol were fractionatedly extracted with petroleum, diethyl ether, ethyl acetate and n - butanol in turn, and the various fractions " aoa were analyzed

    為了探討玫瑰花抗氧化活性的影響因子，比較了不同乾燥方法、提取方法對其抗氧化活性的影響，發現：經短時高溫處理后再進行乾燥有利於較好地保持玫瑰花的抗氧化活性；以水作溶劑提取時， 25 100范圍內水提液的抗氧化活性隨著溫度的升高而增強；通過正交實驗篩選得到常溫下玫瑰花抗氧化活性物質的最佳提取方法為： 75乙醇為溶劑，液料比1 ： 10 ，提取3次，每次24h ； 75乙醇提取物依次用石油醚、乙醚、乙酸乙酯、正丁醇等有機溶劑進行兩相分部萃取，發現玫瑰花的抗氧化活性物質主要存在於乙酸乙酯部，說明玫瑰花抗氧化活性主要成分可能是單寧類、黃酮苷類和原花色素類化合物； 4
  13. Standard test methods for rubber chemicals - determination of percent insoluble sulfur by solvent extraction

    橡膠加工用化學藥品.用溶劑提取法測定不溶解硫磺百分比的標準試驗方法
  14. Toughening thermoset matrix composites with interlayered thermoplastic particles is an effective method to improve fracture toughness and impact resistance without sacrificing hot / wet properties. furthermore, transverse strength, fatigue resistance and solvent resistance can also be enhanced. drapability and tackness of interleaved prepreg is maintained as conventional level

    對樹脂基體復合材料採取層間顆粒增韌是提高復合材料層壓板韌性、抗沖擊能力和抗分層能力的有效途徑，在保持原有復合材料濕熱性能的前提下，通過層間顆粒增韌，還可以改善垂直纖維方向的強度、抗疲勞性能以及耐溶劑性，並不影響原有的成型工藝。
  15. The adoption solvent extract of the valid composition in ginger

    採用有機溶劑法提取生薑有效成分
  16. 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

    研究比較各種分離方法，提出了用復合萃取分離法從120號溶劑油中分離出正庚烷並回收甲基環己烷的方案。
  17. The recent research and application of at home and abroad about modem separation technologies, for example solvent extraction process, membrane separation technology, salt - induced phase separation processes, macroporous rosin adsorption process and ion exchange method in erythromycin extraction are reviewed in detail. besides, the foreground of these modem separation technologies was discussed

    綜述了近年來國內外現代分離技術溶劑萃取法、膜分離技術、鹽析沉澱法、大孔樹脂吸附法及離子交換技術在紅黴素分離提取領域的研究應用進展，並對這些現代分離技術的發展前景做了簡要探討。
  18. For example, when the gaas substrate is etched by h2so4 - h2o2, h2o2 is adopted to oxidate the substrate first, then the substrate was etched by means of laser wet etching in h2so4 solvent. theoretical analysis and experimental results show that compared with the mixed - solvent - etching, more smooth etched surface can be obtained by this method ; and because the substrate is preprocessed, time of laser induced wet - chemical etching

    理論分析和實驗結果都表明，次序選擇腐蝕法可以有效地提高腐蝕表面的均勻性;因先對基片進行化學腐蝕處理，大大縮短了激光化學腐蝕的時間;使溶劑先後分別作用於基片，可以提高激光化學腐蝕溶劑配比的精度容差，使激光化學腐蝕控制和分析更加簡單。
  19. On the basis of above theoretical derivation and analysis on experimental results, by correlating solvent ( water ) transfer with solute ( salt ) transfer on hot side and correlating mass transfer with heat transfer during vmd and introducing a contribution coefficient which can reflect the characteristics of mass transfer through membrane, a new model of mixed flow is presented

    在上述理論推導及實驗分析的基礎上，本文將熱側溶劑傳輸與溶質傳輸、膜蒸餾過程熱量傳輸與質量傳輸相關聯，並引入一個能夠反映膜內質量傳輸特徵的「貢獻系數」 ，將努森流模型與粘性流模型結合起來，從而提出了新的混合流模型。
  20. Carbon black for rubber industry - secondary characteristics - part 5 : determination of solvent extractable material

    橡膠業用炭黑.二級特徵.第5部分:溶劑可提取材料的測定
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