diethyl ether 中文意思是什麼

diethyl ether 解釋
【化學】二乙醚。

  • diethyl : n. 【化學】二乙基的。
  • ether : n. 1. 【物理學】以太，能媒。2. 【化學】醚；乙醚。3. 〈詩〉上空，蒼天。4. 【哲學】靈氣；氣氛。
  1. Diethyl ether for pesticide residue and polychlorinated biphenyl analysis

    殺蟲劑殘留物和多氯化聯苯分析用二乙醚
  2. Animal feeding stuffs. determination of diethyl ether extract

    動物飼料.乙醚萃取物的測定
  3. Specification for diethyl ether technical

    工業用二乙醚規范
  4. Chemical reagent diethyl ether

    化學試劑乙醚
  5. Ammonium nitrate - method for determination of matter soluble in diethyl ether

    硝酸銨.第10部分:二乙醚中可溶物質測定方法
  6. Methods for analysis of oilseed residues - determination of diethyl ether extract

    油料種子殘留物分析方法.第5部分:二乙醚萃取物測定
  7. Animal and vegetable fats and oils - determination of unsaponifiable matter - method using diethyl ether extraction

    動植物脂肪和油.非皂化物的測定.二乙醚萃取法
  8. Animal and vegetable fats and oils - determination of unsaponifiable matter - part 1 : method using diethyl ether extraction reference method

    動植物油脂不皂化物測定第1部分:乙醚提取法
  9. Animal and vegetable fats and oils. determination of unsaponifiable matter. part 1 : method using diethyl ether extraction reference method

    動物脂肪和植物脂肪.不皂化物質含量的測定.第1部分:二乙基氧化物提取法
  10. 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
  11. Iso animal and vegetable fats and oils - determination of unsaponifiable matter - method using diethyl ether extraction iso 3596 : 2000 ; german version en iso 3596 : 2001

    動植物脂肪和油.不可皂化物的測定.二已醚萃取法
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