無水乙醇 的英文怎麼說
中文拼音 [wúshuǐyǐchún]
無水乙醇
英文
absolute ethanol-
The dark purple powder color is soluble in water and solution of water and alcohol, but insoluble in oil and absolute alcohol
產品為暗紫色粉末,易溶於水及乙醇水溶液,不溶於油脂、無水乙醇。Method : experimental rat gastric ulcer models including waterlogging stress - restraint ulcer, pyloric ligation induced ulcer, indomethacin induced gastric mucosa injury and absolute alcohol induced gastric mucosa ulcer were used in this experiment
方法:用水浸應激型、幽門結扎型、消炎痛致胃粘膜損傷型及無水乙醇致胃粘膜損傷潰瘍模型方法試驗。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。Azeotropic distillation stage and dehydration with alcohols can prepare nanocry stalline powders with extremely small crystallite size ( 40nm )
共沸蒸餾乾燥法和無水乙醇置換乾燥法均能制備50nmal _ 2o _ 3粉體。The taste micro acid, is easy to dissolve in the water, does not dissolve in the absolute ethyl alcohol
味微酸,易溶於水,不溶於無水乙醇The pertinent research work has been carried out as follows : the transparent nano - tio2 films on soda - lime glass substrates were obtained by sol - gel process. the precursor of nano - tio2 film was ti ( oc4h9 ) 4 and the menstruum was c2h5oh. the preparation conditions which were effecting the nano - tio2 quality were researched
本文主要就納米tio _ 2薄膜的制備、探索用ecr氮等離子納米tio _ 2的摻雜改性等開展了如下的工作:本文採用溶膠?凝膠法,以鈦酸丁醋做前驅體、無水乙醇做溶劑,水解制備溶膠,然後通過提拉法制備納米tio _ 2薄膜。A new method on extraction of phenanthrene from crude anthraceneis given, which includes azeotropic dissolution with ethylene glycol, extraction of carbon tetrachloride, treatment of sulfuric acid and ethyl alcohol recrystallization, in the end, the best process is obtained
研究了從粗蒽中提取菲的方法,即用乙二醇對原料進行共沸,以四氯化碳為溶劑並用硫酸處理,最後用無水乙醇重結晶,制定出最佳的工藝路線Abstract : a new method on extraction of phenanthrene from crude anthraceneis given, which includes azeotropic dissolution with ethylene glycol, extraction of carbon tetrachloride, treatment of sulfuric acid and ethyl alcohol recrystallization, in the end, the best process is obtained
文摘:研究了從粗蒽中提取菲的方法,即用乙二醇對原料進行共沸,以四氯化碳為溶劑並用硫酸處理,最後用無水乙醇重結晶,制定出最佳的工藝路線Occurs as a white or nearly white, granular or crystalline powder and as a mixture of various states of hydration, up to the trihydrate, depending on the method of isolation
本品為白色結晶性或顆粒性粉末本品在沸水中極易溶解,在水中溶解,在無水乙醇氯仿或乙醚中不溶。Simultaneously cross - linked and quaternized 4 - vp - co - nbuma was also investigated as humidity sensing materials and showed good linearity, high sensitivity, good high stability at high humidity and high temperature, and durability to organic solvent, etc. sensors based on 4vp - co - buma ( vp / buma = l / l ) with crosslinking and quaternization reaction of 17 hours exhibited a change of three orders of magnitude ( 104 ~ 107 ) in impedance over the range of 95 % rh ~ 30 % rh, showing high sensitivity, and little hysteresis was observed
元件具有響應線性度好,靈敏度高,濕滯小、高溫高濕穩定性好、耐無水乙醇有機溶劑性能好等優點。其中,交聯季胺化17小時配料比為1 1共聚物濕敏元件,在33 rh 95 rh濕度范圍內,阻抗變化達3個數量級( 10 ~ 7 - 10 ~ 4 ) ,響應靈敏度高,幾乎無濕滯。Frozen fresh specimens are used in page and pure ethanol humid preparations are used in cyt b gene 433bp sequence analysis
細胞色素b基因序列研究採用無水乙醇浸制標本。對擴增效果好的產物進行提純和測序。Potassium acetate adsorbed on the surface of kaolinite particle can be eluted by absolute ethyl alcohol, while that intercalated between the inner layer of kaolinite may not be affected
用無水乙醇作洗滌液可以將吸附在高嶺土顆粒表面的乙酸鉀洗脫除去,而已經插入高嶺土層間的乙酸鉀則不受影響。The radish red by the mustard family plant party loyalty radish after squeezing, filters, withdraws, the vacuum concentration, spray drying but, assumes the scarlet red indefinite powder, the easy absorption of moisture, after the absorption of moisture to form massive, but does not affect the use effect, the taste micro acid, is easy to dissolve in the water, does not dissolve in the absolute ethyl alcohol, serves as the food coloring, is suitable in the acidic drink, the luster bright, is transparent, general amount used 0. 02gkg
蘿卜紅由十字花科植物紅心蘿卜經壓榨、過濾、提取、真空濃縮、噴霧乾燥而得,呈深紅色無定型粉末,易吸潮,吸潮后結成塊狀,但不影響使用效果,味微酸,易溶於水,不溶於無水乙醇,用作食用色素,適用於酸性飲料,色澤鮮艷、透明、一般用量0The results displayed that the spectra were wider than that of one single dye and there were energy transfer between c102 and rh6g. in silica films the energy transfer efficiency was higher than that in ethanol solutions
C102 : r上6gh元混合染料間存在著能量傳遞,將其摻雜到isio 。凝膠中,發現與無水乙醇溶液中相比;能量轉移效率增加,光譜i展寬,原因可能是出。Nanosize silver particles have been prepared by reduction of aqueous solution of agno3 in the presence of polyvinylpyrrolidone, ethanol and de - ionized water, hydrazine hydrate was used for the reduction
摘要採用聚乙烯吡咯烷酮、無水乙醇和去離子水混合溶液,利用水合肼還原硝酸銀制備納米銀粒子。The antimicrobial secretion could be divided into three sections, every section had antimicrobial activity. the first could be extracted by petroleum ether, the second could be extracted by ethyl alcohol, the third could dissove in water and could be separated by sephadex g - 50, g200 gel filtration chromatography and carbornmethyl cellulose - 1 anion - exchange chromatography and detected by a256, . the antimicrobial secretion had wide spectrum and had strong inhitory activity against germs and fungi, they could inhibit sixteen kinds of plant pathogenic germs, eight kinds of animal germs and eight kinds of plant pathogenic fungi
粗提物經石油醚萃取可得第一個活性部分,剩餘部分經無水乙醇萃取可得第二個活性部分,剩餘物質再經凝膠sephadexg - 50後有兩個峰,第二峰有活性,再經凝膠sephadexg - 200後有三峰,第二峰有活性,將其經過陽離子交換柱cm - 1後有兩峰,此兩峰均有抑菌活性。Main ingredients : all - grass of climing groundse, fruit of belvedere, root of light yellow sophora, rhizome of yunnan goldthread, borneol and mint
主要原料千里光地膚子苦參黃連冰片薄荷當歸藏紅花首烏丙二醇無水乙醇等。The scope of this study is to find an effective method and appropriate additives to prepare chitosan composite membranes with good physical and biological properties. glycerol is a good additive that could make the chitosan composite membranes have good flexibility and keeps the wound dry. in this paper, chitosan / glycerol blend membranes were prepared by the sol - gel transformation method
當甘油含量為8 ,用無水乙醇、甘油和氫氧化鈉按一定比例配製成的凝膠混合液在70凝膠2小時制備的殼聚糖甘油膜五色透明、表面光潔、無氣泡、手感柔韌性較好,拉伸強度和斷裂伸長率最佳,可以滿足實際應用需要。Solubility soluble in hot water, acetone, 2 - j ketone, n, n - dimethy formamide, ethyl acetoacetate, cyclohexanoneit can recat with ethanol anhydrous
溶解性:溶於熱水及丙酮酮二甲基甲酰胺乙酸乙酯環乙酮溶於無水乙醇並發生反應Monodisperse ( coefficient of variation 5 % ) polystyrene microspheres in the size range of 1. 0 ~ 10 m are prepared by dispersion polymerization in ethyl alcohol reaction media using polyvinylpyrrolidone ( pvp ) as a steric stabilizer and 2, 2 ' - azobisizobutyronitrile ( aibn ) as an initiator in suitable condition
摘要以聚乙烯吡咯烷酮為分散劑、無水乙醇為反應介質、偶氮二異丁腈為引發劑,採用分散聚合的方法,通過優化反應條件,成功制備出了粒徑范圍為1 ~ 10 m不同粒徑級別的單分散(分散系數5 % )聚苯乙烯微球。分享友人