加入甲醇的
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Methyl ester and tetrahydrofuran both made methanol dissolve in cottonseed oil easier.
结果表明,生成的甲酯和加入的四氢呋喃都可促使甲醇和棉籽油互溶,使反应均相进行。
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The effect of the addition of trisaminomethane on the separation of diethylstilbestrol and its cleavage product wasstudied.
该方法中以甲醇作为溶剂,以乙酸钠作为电解质,研究了三羟甲基氨基甲烷的加入对分离己烯雌酚及其分解产物的影响。
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Procedure— Unless otherwise specified, transfer 35 to 40 mL of methanol or other suitable solvent to the titration vessel, and titrate with the Reagent to the electrometric or visual endpoint to consume any moisture that may be present.
操作---除另有规定外,转移35~40ml的甲醇或其他合适的溶剂至滴定容器中,以永停法或视觉指示终点,用卡尔试剂滴定可能存在的水汽(所消耗体积忽略不计,因为不会代入到公式计算),快速加入测试样本,混匀,然后再次用卡尔试剂滴定到终点。
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Results:Normal rats as the donator of serum, using methanolic extract of CWC, 10 times equivalent dose for adults every day, intragastric administration twice a day of 8-hour interval, keeping on 3 days, hemospasia after 2 hours of the last administration was the better preparative method of the serum containing drug. Adding 10% of this serum to culture system could elevate hepatocyte increment and depress ALT in cell culture medium significantly.
结果:每天以成人等效剂量10倍的甲醇提取物间隔8h分两次给正常大鼠灌胃给药,连续3天,末次给药后2h采血制备含药血清比较合理,体系中加入10%该条件下制备的含药血清能明显提高损伤肝细胞的增殖能力、降低细胞ALT泄漏。
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The methanogenic bacteria strains with different growth substance were easily isolated on the media with different chemical composition.
在培养墓中同时加入营养基质甲酸钠、乙酸钠、甲醇以及注入氢和二氧化碳的混合物,使以各种生长基质为底物的产甲烷细菌在一种培养基比较容易被分离出来。
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Mono-cinnamyl maleate was prepared by esterification of maleic anhydride and cinnamyl alcohol of 1 mol:2 mol at 95 ℃ for 2~4 h.Then added isomeric catalyst and mono-cinnamyl fumarate was made by reacting at 90 ℃ for 4 h.After methanol (methanol:mono-cinnamyl fumarate = 6 mol:1 mol) was added,the mixture maintained at 90 ℃ for 4.0 h to synthesize CMF.
合成试验表明:以摩尔比为1:2的马来酸酐与肉桂醇在95 ℃醇解反应2~4 h后加入异构化催化剂,90 ℃转型反应4 h后,添加6倍摩尔质量的甲醇,在90 ℃恒温反应4 h,反丁烯二酸桂醇甲酯的合成产率较高。
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The sodium dihydroxy phosphate solution was added 0.4% triethylamine and adjusted its pH to 6.0 by adding 20% phosphate acid. The electrodes potential were set at 300mV, 400mV, 550mV and 650mV.
液相色谱的流动相为30mmol/L磷酸二氢钠水溶液:甲醇=90:10(其中水溶液中加入0.4%三乙胺,并用20%磷酸调pH至6.0);四组电极的检测电势分别为300mV、400mV、550mV和650mV。
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The Java Brucea oil emulsion appended methyl extracts could restrain Bel-7402 hepatic carcinoma, KB nasopharyngeal darcinoma, and HL-60 leukosis and BGC-823 gastric tumor strain at same time.
加入脱脂鸦胆子甲醇提取物的鸦胆子油乳样品在抑制Bel-7402人肝癌、KB人鼻咽癌肿瘤菌株的同时,对HL-60人白血病和BGC-823人胃癌肿瘤菌株也有较好的抑制作用。
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Use methanol to be in progress preserve, the antioxidant putting in does not affect green plain acid and Herb of Grace glucoside separation extremely contents.
用甲醇进行保存,抗氧化剂的加入不影响绿原酸和芸香苷的分离极其含量。
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Optimum conditions are as follows: DMF is used as solvent, compound quaternary ammonium salt as catalyst, n(p-nitrochloro benzene):n=1: 1.2, m:m(p-nitrochloro benzene)=4%, m:m(p-nitrochloro benzene)1:1, and reacted under 155~160℃ for 18 h; reduction reaction is carried out in methanol with Raney nickel, which is used as catalyst; the raw product is added an antioxidant, and distilled simply under reduced pressure to obtain 4-fluoroaniline with excellence quality, purity is over 99.5%, total yield is 89.3%.
实验结果表明,氟化反应的最佳条件为:二甲基甲酰胺为溶剂、复合季铵盐为催化剂,n:n=1:1.2,m(催化剂:m=4%,m:m=1:1,于155~160℃下反应18h;还原反应在甲醇中进行,以阮内镍为催化剂;粗产品加入抗氧剂,减压条件下简单蒸馏得高品位的对氟苯胺。
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。