无水乙醇
- 与 无水乙醇 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Sample of plant leaf was pulverized with absolute alcohol in a mortar to extract chlorophyll from the leaf.
将植物叶试样置于研钵中用无水乙醇研磨,使植物叶中叶绿素溶入乙醇中。
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Put 3g chitosan into 50mL 1% CH3COOH solution, after dissolved completely, added 9mL H2O2 into this solution and the reaction took place at temperature of 80℃ for 3 hours. Filtrated the hydrolysate and then concentrated liquid to 20mL, neutralized liquid with 1% NaOH, added 200mL ethanol to extract hydrolyte, 3000r/min eccentricity, and then we could got all water-soluble canary yellow chitosan by vacuum-freeze drying.
称取3g壳聚糖,于50mL1%冰乙酸溶液中充分溶解,加入9mL过氧化氢,在80℃条件下水浴反应3h,水解液抽滤,滤液在60℃浓缩至20mL左右,1%NaOH中和后,加入体积比为10:1左右的无水乙醇,沉淀水溶性壳聚糖,3000r/min离心,将糖液真空冷冻干燥后可得淡黄色完全水溶性壳聚糖。
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Methods Benzhydrylpiperazine was synthesized by condensation of chlorodiphenylmethane and anhydrous piperazine in absolute ethanol.
以二苯甲基氯和无水哌嗪为原料,无水乙醇做溶剂,两者经缩合制得二苯甲基哌嗪。
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The other for: safrole, sassafras oil, safrole different 82 yuan / kg; 1 - phenyl -2 - propanone 2,500 yuan / kg; 3.4 dioxane methylene diphenyl -2 - propanone 7200 yuan / ton; Piperonal 1,000 yuan / kg; N-acetyl-o-amino benzoic acid 11500 yuan / ton; anthranilic acid 15,500 yuan / ton; Phenylacetate 15,000 yuan / ton; acetic anhydride 9900 yuan / ton; trichloromethane 4100 yuan / ton ; anhydrous ether 8500 yuan / ton; piperidine 58000 yuan / ton; methyl ethyl ketone 10,000 won / ton; sulfate 1,200 yuan / ton; hydrochloride 400 yuan / ton; ethanol 4200 yuan / ton.
另供:黄樟素、黄樟油、异黄樟素82元/公斤;1-苯基-2-丙酮2500元/公斤;3.4 亚甲基二氧苯基-2-丙酮7200元/吨;胡椒醛1000元/公斤;N-乙酰邻氨基苯酸11500元/吨;邻氨基苯甲酸15500元/吨;苯乙酸15000元/吨;醋酸酐9900元/吨;三氯甲烷4100元/吨;无水乙醚8500元/吨;哌啶58000元/吨;甲基乙基酮10000元/吨;硫酸1200元/吨;盐酸400元/吨;无水乙醇4200元/吨。
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The other for: safrole, sassafras oil, safrole different 82 yuan / kg; 1 - phenyl -2 - propanone 2,500 yuan / kg; 3.4 dioxane methylene diphenyl -2 - propanone 7200 yuan / ton; Piperonal 1,000 yuan / kg; N-acetyl-o-amino benzoic acid 11500 yuan / ton; anthranilic acid 15,500 yuan / ton; Phenylacetate 15,000 yuan / ton; acetic anhydride 9900 yuan / ton; trichloromethane 4100 yuan / ton ; anhydrous ether 8500 yuan / ton; piperidine 58000 yuan / ton; toluene 5200 yuan / ton; methyl ethyl ketone 10,000 won / ton; sulfate 1,200 yuan / ton; hydrochloride 400 yuan / ton; anhydrous Ethanol 4200 yuan / ton.
另供:黄樟素、黄樟油、异黄樟素82元/公斤;1-苯基-2-丙酮2500元/公斤;3.4 亚甲基二氧苯基-2-丙酮7200元/吨;胡椒醛1000元/公斤;N-乙酰邻氨基苯酸11500元/吨;邻氨基苯甲酸15500元/吨;苯乙酸15000元/吨;醋酸酐9900元/吨;三氯甲烷4100元/吨;无水乙醚8500元/吨;哌啶58000元/吨;甲苯5200元/吨;甲基乙基酮10000元/吨;硫酸1200元/吨;盐酸400元/吨;无水乙醇4200元/吨。
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Said preparation method includes: dissolving curcumin and polyvinyl pyrrolidone according to mass ratio of 1:4-1:15 in organic solvent (for example absolute ethyl alcohol, propyl alcohol, isopropyl alcohol and ethyl acetate), making reduced pressure distillation at 55-95deg.C to remove most of ethyl alcohol to obtain paste material, quickly pouring the paste material into a stainless steel disk, vacuum drying at 60-90deg.C in drying oven and pulverizing.
本发明将姜黄素和聚乙烯吡咯烷酮按质量比1∶4~1∶15溶于有机溶剂(如无水乙醇、丙醇、异丙醇、乙酸乙酯等),于减压蒸馏55-95℃下除去大部分乙醇至成糊状,迅速倒入不锈钢盘中,在60-90℃下真空烘箱烘干,用粉碎机粉碎,得到姜黄素固体分散体。
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The effects of molar ratio of linoleic acid and ethanol, temperature , and amount of ionic liquid on esterification reaction were studied and the optimal reaction conditions were obtained, that is, n :n = 4:1 , at refluence temperature, with the amount of ionic liquid equaling 42wt.
研究了环境友好的BF4离子液体催化亚油酸等高碳脂肪酸与无水乙醇酯化反应,考察了亚油酸与乙醇的摩尔比、反应温度、离子液体用量等条件对亚油酸酯化反应结果的影响,优化了反应的工艺条件。
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Anhydrous ethanol ; glacial aletic acid ; anhydrous aluminium ; ethyl acetate ; catalyzed esterize
无水乙醇;冰乙酸;无水三氯化铝;乙酸乙酯;催化酯化
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The results show that the resulting product can be separated by the mixture of petroleum ether, aether and acetic acid (10:10:1, V/V). Among them, the oleic acid component can be eluted by the mixed solvent of ethanol and carbon tetrachloride (35:15, V/V), and then productivity of sodium oleoyl sarcosine can be obtained.
结果表明:用石油醚:无水乙醚:冰乙酸=10:10:1分离产物中的组分,再用无水乙醇:四氯化碳=35:15混合溶剂洗脱制备油酸组分,进而计算油酰肌氨酸钠的产率是可行的。
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The fixative mixture was replaced by washing the specimens in precooled (-20℃) 100% methanol followed by washing with absolute ethanol.
先用-20℃预冷的无水甲醇洗固定好的样品,然后用-20℃预冷的无水乙醇洗。
- 推荐网络例句
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。