fractionation 中文意思是什麼

fractionation 解釋
n. 名詞 【化學】分餾(法);分層分離,分級分離,份化。

  1. During diagenetic process, there may exist the fractional crystallization of clino - pyroxene, plagioclase, olivine and ti - fe oxide, and the accumulation of olivine. the alkalic - ultramafic dikes formed by low degree partial melting ( 3. 4 % ) of enriched mantle, consist of single olivine pyroxenolite, the dominating olivine fractionation is evident

    成因上為富集地幔部分熔融作用的結果,但在成巖過程中也可能存在單斜輝石、斜長石、橄欖石和ti - fe氧化物等礦物的分離結晶作用。
  2. The effects of fractionation are dependent on total doses and on fractionation procedures.

    分次照射的效應取決于總計量和分次方法。
  3. These early observations have been supplemented with results from chemical fractionation.

    這些早期的觀察曾為化學餾分的結果所增補。
  4. The second general problem of cell fractionation is the contamination of each fraction by others.

    細胞組分分離的第二個普遍問題是各組分的相互摻雜。
  5. Determination of humus fractionation in forest soil

    森林土壤腐殖質組成的測定
  6. Practice and studies on dry fractionation process of pa

    棕櫚油干法分提的工藝實踐與研究
  7. This is known as vacuum fractionation

    這就是所謂的真空分餾。
  8. Boron isotope fractionation and its application in environmental study

    硼同位素分餾及其在環境研究中的應用
  9. Fractionation and its affecting factors of manganese in tea garden soils

    城市污泥農用對植物和土壤中有機污染物的影響
  10. Fractionation and structure of polysaccharides of artemisia sphaerocephala krasch gum

    沙蒿籽膠多糖的分級純化和結構分析
  11. Effect of root system on metal fractionation in rhizosphere of contaminated soil

    不同作物根際環境對土壤重金屬形態的影響
  12. 6 - phosphogluconate dehydrogenase ( 6 - pgadase, ec 1. 1. 1. 44 ) was isolated by homogenate, ammunium sulfate fractionation, deae - sepharose chromatography, blue - sepharose affinity chromatography and gel filtration with sephadex g - 200 from bacillus subtilis, and some properties of the enzyme had been studied. a 113. 8 - fold purification was obtained with a 8. 2 % yield. the purified enzyme moved as a single electrophoretic band in page

    將枯草芽孢桿菌超聲波破壁后的粗提取物進行分段鹽析、 deae - sepharose陰離子交換柱層析, blue - sepharosecl - 6b特異結合柱層析和sephadexg - 200凝膠過濾等純化步驟,得到聚丙烯酰胺凝膠電泳為單一蛋白區帶,比活為1 . 46u mg的酶制劑。
  13. There are two stages to crux maifan stone ' s formation, the first stage is the forming stage of primary material, that is to say, the stage of mother rock formation, in this stage, the latter hypabyssal intrusive of crystallization fractionation and self - metamorphic process are an important factor to make sure them have many trace elements

    麥飯石的形成中有兩個階段是十分關鍵的,第一個階段是基本物質的形成階段,即母巖的形成階段。在這一階段中巖漿分異結晶晚期的淺成侵入以及自變質作用,是保證其富含營養微量元素的重要條件。
  14. The correction of mass fractionation in the measurement of rhenium and osmium isotope ratios by icp - ms

    電感耦合等離子體質譜法測量錸和鋨同位素比值的質量分餾校正
  15. The proposed method is applied to predict the purity of para - xylene ( px ) in a px fractionation by adsorption process

    將所提出的軟測量建模方法用於二甲苯( px )吸附分離過程純度的預測。
  16. 4 ree geochemistry of fluorite, siderite, quartz, magnetite, calcite in ores mainly controlled by ore - forming fluids, in contrasting to those of the metamorphic minerals which controlled by crystal structure. the ore - forming fluids of initial stage show larger lree / hree fractionation than that of later stage. a narrow range of 6 ~ 4s valus for early stage chalcopyrite ( - 0. 3 to 2. 8 ) suggested that s originated from the mantle and the 6 13c and 8 18o valus of siderite range from - 11. 17 to - 15. 37 % and from 8 ~ 9. 1, respectively, it indicates that the c and o of ore - forming fluids were derived from the magma or organogenous sediment

    6 、昆陽群因民組地層中出現的稀土富集、成礦與我國的白雲鄂博稀土ree一fe一nb超大型礦一床和澳大利亞的olympicdamcu一u一au一ag一ree超大型礦一床,在成礦時代、產出大地構造背景、成礦物質來源等方面具有較大的相似性,均體現成礦受控于中元古代1
  17. Strong negative 8 eu shows the granites are high evolved granite. ( 6 ) the tetrad effect of ree and the obvious fractionation between k - rb, y - ho, zr - hf, nb - ta, and sr - eu in the dajishan granites indicate that, the aqueous fluid pays an important role in the evolution of the granites, as well as indicate that there exist enough interaction between peraluminous melt and aqueous magmatic fluid. furthermore the fluorine played a very important role in this process

    ( 6 )大吉山花崗巖類稀士元素具有「四重效應」配分的特點以及微量元素對kjrb 、 y / ho 、 zr艦f以及nb / ta發生明顯分異,暗示在花崗巖巖漿的演化過程中,經歷了充分的流體一熔體作用,同時分異出大量富含f 、 w等礦化劑元素和成礦元素的熱液流體,致使鎢礦的形成。
  18. Tree ring is a kind of natural archives, on which the isotopic analysis is important to study global climate and environmental change. the authors mainly provide a comprehensive introduction to the fractionation models of carbon, hydrogen and oxygen isotope in plants, their research techniques and the extract methods from cellulose. that results show isotopic tracer can record the message of climatic variation and has become a powerful tool for paleoclimate reconstruction and for the modern environment changing research. especially studying on pages, the cellulose isotopic analyses of imbedded old tree ring have become the mainly quantitative means of environmental evolvement. in addition, china is a typical monsoon country, research in tree ring stable isotope seasonal variation can give us a lot of important information on that. up to now, the research techniques and works on tree ring in our country are still in its earlier stage, and remain many limitations. it needs further accumulate basic research materials, intensify regional contrast and intercross studies on relative subjects

    尤其是在過去全球變化pages研究中,埋藏古木纖維素中的碳氫氧同位素分析已成為環境演化研究的主要量化手段。另外,對于中國這樣典型的季風氣候國家,開展樹輪穩定同位素隨季節性變化的研究具有重要的意義。我國在樹輪研究方面起步較晚,研究方法和研究內容上也比較簡單,還存在不小差距,既要進一步積累基礎資料,又要做區域對比,加強與相關學科的交叉研究。
  19. Recently, some techniques, like liquid - liquid extraction, headspace, chromatography fractionation and spme, have applied to the researches of aroma compounds in chinese rice wine

    近年來,頂空取樣、液液萃取、色譜分離技術、固相微萃取等技術已經開始應用於黃酒的風味成分研究。
  20. Conentional methods such as fractionation of complex clinical samples by ionic exchange chromatography and new methods such as enriching low abundant proteins by affinity capture with a combinatorial library of ligands14 proide much needed tools for processing complex biological and clinical samples for proteomics research

    傳統(如對復雜臨床樣品通過離子交換層析進行分離)和現代的方法(如通過親和捕獲與配體庫的組合富集低豐度蛋白)為處理用於蛋白質組學研究的復雜的生物學與臨床樣品提供了極需的工具。
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