E - ethyl acetate 中文

ethyl acetate 醋酸乙酯，乙酸乙酯。

醋酸乙酯，乙酸乙酯。 “ethyl“ 中文翻譯： n. 1.【化學】乙基，乙烷基。 2.四乙鉛〔加在汽油中 ...“acetate“ 中文翻譯： n. 【化學】醋酸鹽；醋酸酯；醋酸根，醋酸基；醋酸纖維素 ...“acetate ethyl“ 中文翻譯：乙酸乙酯“acoet ethyl acetate“ 中文翻譯：乙酸乙酯“ethyl acetate 3l“ 中文翻譯：乙酸乙酯300“ethyl acetate food grade“ 中文翻譯：乙酸乙酯“ethyl acetate test“ 中文翻譯：乙酸乙酯試驗:檢乙醇“ethyl acetate tests“ 中文翻譯：乙酸乙酯試驗“ethyl chloro acetate“ 中文翻譯：氯乙酸乙酯“ethyl cyano acetate“ 中文翻譯：乙烷深藍醋酸鹽“ethyl diacetyl acetate“ 中文翻譯：二乙酰乙酸乙酯“ethyl glycol acetate“ 中文翻譯：乙基乙二醇乙酸酯“ethyl hexyl acetate“ 中文翻譯：乙基乙酸己酯“ethyl ionylidene acetate“ 中文翻譯：乙酸乙基紫羅蘭叉酯“ethyl isoamyl carbinyl acetate“ 中文翻譯：乙酸乙基異戊基原酯“ethyl mercury acetate“ 中文翻譯：乙基乙酸汞; 乙酸乙汞“ethyl methacryloylamino acetate“ 中文翻譯：甲基丙烯醯胺乙酸乙酯“ethyl phenyl acetate“ 中文翻譯：苯乙酸乙酯“ethyl rhodinyl acetate“ 中文翻譯：乙酸乙基玫瑰酯“hydrolysis of ethyl acetate“ 中文翻譯：乙酸乙酯水解“phenyl ethyl acetate“ 中文翻譯：乙酸苯乙酯“tromexan ethyl acetate“ 中文翻譯：新雙香豆素,雙香豆素乙酯,雙香豆素醋酸乙酯“acetate“ 中文翻譯： n. 【化學】醋酸鹽；醋酸酯；醋酸根，醋酸基；醋酸纖維素。 “ethyl“ 中文翻譯： n. 1.【化學】乙基，乙烷基。 2.四乙鉛〔加在汽油中的防爆劑〕。 3.含四乙鉛的汽車燃料。 “aethylis; ethyl; ethyl group“ 中文翻譯：乙基

ethyl alcohol
The application experiment of aroma - producing active dry yeast in vinegar production demonstrated that the sensory quality , total acids content and total esters content of experimental samples were better or higher than that of contrast samples ; the flavoring compositions quantity , content and species in experimental samples were higher or more than that in contrast samples ( especially ethyl acetate content and ethyl lactate content increased by 0 . 99 % and 1 . 22 % respectively ) ; the use of dry yeast could increase flavoring compositions content in vinegar , better vinegar aroma , and improve vinegar quality ; and the optimum use level of dry yeast was 0 . 2 % ( for main grains ) 摘要生香活性干酵母的食醋生產應用試驗表明，試驗樣的感官質量及其總酸、總酯含量均比對照樣有所提高；試驗樣（蒸餾液）香氣成分的數量、含量和種類均比對照樣（蒸餾液）多，尤其乙酸乙酯、乳酸乙酯的含量分別提高0 . 99 %和1 . 22 % ；應用生香活性干酵母可提高食醋中香氣成分的含量，改善了食醋香氣，提高了食醋質量；生香活性干酵母的適宜用量為0 . 2 % （對主糧）。
The product ratio was increased to 45 % from 30 % . furthermore , lactide was recycled from the ethyl acetate recrystallization solution , and structure was investigated with ir and uv spectrum . the result indicated that the process is suitable and feasible , and the product ratio is beyond 40 % 本文在總結了目前眾多聚乳酸單體? ?丙交酯的合成技術的基礎上，選用減壓蒸餾工藝并加以改進，設計出最佳的實驗裝置，使丙交酯的產率從30提高到45 ，并對重結晶后的母液進行有效的回收，回收率也能達到40 ，對回收后的丙交酯進行了測試分析，證明了回收過程的可行性。
According to the polarity , the residue was isolated with petroleum ether , chloroform , ethyl acetate , and n - buoh , respectively . the n - buoh fraction , confirmed as neuroactive component , was subjected to sephadex lh - 20 column chromatography to provide an extract fraction , as a buff powder , which could induce neurite outgrowth in rat pheochromocytoma pc12 cells in a dose - dependent manner up to 50 mg / l 將菟絲子干粉用75乙醇浸泡后，減壓蒸干后得到褐色漿狀物，經石油醚、氯仿、乙酸乙酯、正丁醇萃取，經柱層析后，再用葡聚糖凝膠對有效成份進一步純化，獲得了菟絲子中能誘導pc12細胞分化的活性組分。
The resting cells reaction experiment showed that it could also degrade other acetic ester compounds including ethyl acetate , vinyl acetate , chloroethyl acetate , propyl acetate , isopropyl acetate , butyl acetate , sec - butyl acetate and 1 , 3 - butanediol diacetate by producing aetate 休眠細胞反應試驗表明，這株菌除降解醋酸異丁酯以外，還可降解醋酸乙酯、醋酸乙烯酯、醋酸氯乙酯、醋酸丙酯、醋酸異丙酯、醋酸丁酯、醋酸仲丁酯、醋酸丁二醇等醋酸酯類化合物及聚醋酸乙烯酯。
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，比較了不同干燥方法、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干燥有利于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于乙酸乙酯部，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
We specialize in chemical material s , including 1 , 4 - butanediol , tetrahydrofuran , ptmeg , polyvinyl alcohol series , sodium diacetate , glacial acetic acid , dibutyl phthalate , methyl acetate , ethyl acetate , n - butyl acetate , - butyrolactone , polyvinyl acetate emulsion series , pentaerythritol , redispersible emulsion , anhydrous sodium acetate and methanol 公司主要經營的產品有： 1 , 4 -丁二醇，四氫呋喃， ptmeg ，聚乙烯醇系列，雙乙酸鈉，冰醋酸，鄰苯二甲酸二丁酯，醋酸甲酯，醋酸乙酯，醋酸丁酯， -丁內酯，白乳膠系列，季戊四醇，可再分散性乳膠，無水醋酸鈉，甲醇。
The results were as follows : leaching solution by hot water extraction was date in color and had mellow date aroma and the highest fusel oil content but strong bitter taste ; leaching solution by pectinase enzymolysis had the highest reducing sugar content easy for fermentation but excessively high methanol content in fermenting wine ; leaching solution by microwave extraction had the shortest extraction time and fermentation time and the highest ethyl acetate content in wine and the produced wine had special aroma 結果表明， 90熱水浸提，浸提液發酵酒顏色呈棗紅色，雜油醇含量最高，有濃郁棗香，但苦味重；果膠酶酶解浸提，浸提液還原糖含量最高，利于發酵，但發酵酒的甲醇含量過高；微波強化浸提，浸提時間和發酵時間最短，所得棗酒的乙酸乙酯含量最高，且有特殊香味。
Under that condition the strain can produce the most concentration of the bioactive compounds . the physical and chemical properties of the actibacterial compounds have been studied , the results showed the bioactive substance has heat stable , acidity and weakly alkali stable . it can be dissolved in acid water , chloroform solvent , can not be dissolved in ethyl acetate , petroleum ether , alkali water . the result of thinlayer chromatography showed the bioactive compounds can give off blue and green fluorescence in the uv light . the paper chromatography demonstrate the bioactive substance may be a new construct compounds 研究表明，該活性物質具有較強的熱穩定性， ph 9的條件下能穩定存在，但ph 12的強堿性條件下活性物質的抗菌活性幾近喪失；活性物質易溶于氯仿、酸性水、不溶于乙酸乙酯、石油醚、堿性水；薄層層析顯示活性物質在紫外光下能發藍綠色熒光等特點；由捷克八溶劑系統紙層析鑒定該抗菌活性物質不屬于四大類抗生素，可能為一新的抗菌活性物質。
Multi - residue analysis of 20 organophosphorous insecticides in vegetable was performed by db - 1701 capillary column coupled with gc - fpd detector in this study . ethyl acetate was used to extract the pesticides from vegetable samples using a homogenizer . the extract was separated , concentrated and detected by gc - fpd 通過四種提取方法的比較，確立了蔬菜中20種有機磷殺蟲劑多殘留的分析方法為：乙酸乙酯提取劑、高速勻漿法提取，經離心，濃縮， gc - fpd法測定。
The synthesis process of acetimidoyl ethyl ether hydrochloride was introduced , and the preparations of acetamide , ethyl acetate , acetamidine hydrochloride , triethyl orthoacetate , n - cyan - iminoester hydrochloride and hydrazone by acetimidoyl ethyl ether hydrochloride were summarized 摘要介紹了亞氨基乙醚鹽酸鹽的合成工藝，總結了亞氨基乙醚鹽酸鹽制備乙酰胺、乙酸乙酯、鹽酸乙脒、原乙酸三乙酯、 n -氰基乙亞氨酸乙酯以及腙類化合物的合成方法。
Secondly , the recover of lactide from the ethyl acetate recrystallization solution reutilized the waste solution and heighten the general product ratio . the recovery process was analyzed and studied carefully . moreover the two processa above were compared in different aspects 其次，回收重結晶母液使損失在乙酸乙酯中的丙交酯得到循環利用，對回收工藝過程進行了周密分析和探討，并比較了以上兩種過程的異同。
Dissolve in water , carbinol , ethyl acetate , ethanol , methylene chloride and hydrocarbon . store in obturation , photophygous , low temperature neutral or alkalescence condition . nvp is moderate poisonous , less smell causticity to rubber and leather 棕黃色或棕紅色成型粉狀，具有淡淡的特殊氣味，溶于水和乙醇，不溶于二乙醚和氯仿，穩定性好，無刺激，對細菌病毒真菌霉菌及孢子都有較強的殺滅作用。
The solution was adjusted to ph value of 6 . 5 , followed by extracted with ethyl acetate , evaporated to dryness and dissolved the residue with mobile phase . the solution was subsequently subjected to separate hplc assay for each drug 用稀醋酸溶液( 0 . 01mol l )調節ph至6 . 5 ，以乙酸乙酯提取，提取液經減壓濃縮至近干，以流動相溶解定容，然后用高效液相色譜測定。
In the process of experiment , we separated better efficient antioxidative fractions by silica gel column chromatography with different extensible reagent , ethyl acetate : hexane ( 3 : 7 ) and chloroform : methanol ( 9 : 1 ) 實驗中采用乙酸乙酯環己烷( 3 : 7 ) 、氯仿甲醇( 9 : 1 )為展開劑依次二次干柱層析分離出抗氧化物質。
Astringent . the characteristic flavour of wines which produces an unpleasant chemical stimulus in the mouth , due to an excessive level of ethyl acetate 澀的、收斂性的：葡萄酒中乙酸乙酯含量過高時的典型特征，給口腔帶來一種不適的化學刺激感。
The optimum condition for synthesis of ethyl acetate catalyzed by expansible graphite was investigated through orthogonal test 摘要通過正交實驗研究了可膨脹石墨的催化合成乙酸乙酯的最佳條件。
The product is a off - white crystallized particle . it is insolvable in water , and soluble in alcohol , ethyl acetate or benzene 本產品為類白色固體，產品不溶于水，可以溶于酒精、乙酸乙酯或苯。
Results the antioxdant components were found in the ethyl acetate extract from stem of this plant 結果從該植物莖乙酸乙酯的分離物中找到具有抗氧化活性的組分。
By using ethyl acetate and water as extractant , oligoprocyanidins were extracted from grape seeds 介紹了用乙酸乙酯/水作溶劑從葡萄籽中提取低聚原花色素的方法。

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ethyl acetate

ethyl acetate 醋酸乙酯，乙酸乙酯。

ethyl alcohol

Astringent . the characteristic flavour of wines which produces an unpleasant chemical stimulus in the mouth , due to an excessive level of ethyl acetate 澀的、收斂性的：葡萄酒中乙酸乙酯含量過高時的典型特征，給口腔帶來一種不適的化學刺激感。

The optimum condition for synthesis of ethyl acetate catalyzed by expansible graphite was investigated through orthogonal test 摘要通過正交實驗研究了可膨脹石墨的催化合成乙酸乙酯的最佳條件。

The product is a off - white crystallized particle . it is insolvable in water , and soluble in alcohol , ethyl acetate or benzene 本產品為類白色固體，產品不溶于水，可以溶于酒精、乙酸乙酯或苯。

Results the antioxdant components were found in the ethyl acetate extract from stem of this plant 結果從該植物莖乙酸乙酯的分離物中找到具有抗氧化活性的組分。

By using ethyl acetate and water as extractant , oligoprocyanidins were extracted from grape seeds 介紹了用乙酸乙酯/水作溶劑從葡萄籽中提取低聚原花色素的方法。