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- However, the MPH is reversibly inactivated by diethyl pyrocarbonate (DEPC) and the inactivation rate is 9.6 h~(-1). When adding neutralized hydroxylamine, the enzymatic activity of inactivated-MPH was restored to about 60% of initial activity. 然而二乙基焦磷酸酯對組氨酸側鏈的化學修飾引起酶活性的大幅度的下降，其對酶活性的抑制率達到9.;6h~(-1)，當在酶的抑制體系中加了羥胺后，MPH的酶活力能夠恢復到原來的60%25。
- diethyl pyrocarbonate(DEPC) 焦碳酸二乙酯
- diethyl pyrocarbonate 二乙基焦磷醯胺, 二乙焦碳酸鹽
- Secondly, development of studies on pyrocarbon is interpreted in detail. 介紹了熱解炭的微觀結構和石墨化度及其沉積機理的新發展。
- We have gotten 81.67% N,N diethyl o methyl aniline from the residue. 由此破壞了剩餘過渡液中的共沸組成，為過渡液中其他組分的回收利用創造了條件。
- It is also known that sodium ethylate and diethyl phenylmalonate interact together to give ethyl Phenylacetate and diethyl carbonate. 眾所周知，乙醇納和二乙基苯基丙二酸酯反應可以得到乙基乙酸苯酯和二乙基碳酸酯。
- Results show that the microstructure of C/C composites mainly consisted of rough laminar pyrocarbon. 結果表明：C/C複合材料的組織主要以粗糙層為主；
- Animal and vegetable fats and oils - Determination of unsaponifiable matter - Method using diethyl ether extraction. 動植物脂肪和油。不可皂化物的測定。二已醚萃取法。
- With diethyl malonate as the extractant,the condition of extracting gold the electronic scrap was studied. 研究了採用萃取劑丙二酸二乙酯回收電子廢棄物中金的方法。
- Through nitrosation, hydrogenate reducion, and acylate three steps, the yield surpass 80% for the diethyl malonate. 收率相對於丙二酸二乙酯達到了80%25以上。
- N,N-Diisopropylethylamine(DIPEA) was prepared from diisopropylamine (DIPA) and diethyl sulfate (Et_2SO_4). 以二異丙胺 (DIPA)、硫酸二乙酯 (Et2 SO4 )為原料合成N ,N 二異丙基乙基胺 (DIPEA)。
- The results show that the microstructure of pyrocarbon has great influence on the ablation performances of C/C composites. 結果表明：熱解炭結構對C/C複合材料燒蝕性能有較大的影響。
- The preparation of 3,5-dinitroacetophenone from 3,5-dinitrobenzoic acid and diethyl malonate has been investigated. 本文採用丙二酸二乙酯合成法,以3,5-二硝基苯甲酸為原料,經醯化、縮合、脫酸等步驟合成了3,5-二硝基苯乙酮。
- Xu H J,Xiong X,Huang B Y,et al.Friction properties of carbon carbon composites with different pyrocarbon structure[J].Tribology,2003,23(4):344-349. [2]徐惠娟;熊翔;黃伯雲;等.;不同熱解炭結構的炭炭複合材料的摩擦特性[J]
- The chemisorption was the important characteristic of the interaction of jamesonite with diethyl dithiocarbamate. 化學吸附是乙硫氮與脆硫銻鉛礦相互作用的主要特徵。
- The micro morphologies and textural characteristics of the pyrocarbon and fracture surfaces were observed by polarized light microscopy and SEM. 藉助偏光顯微鏡及掃描電子顯微鏡觀察了基體熱解炭的微觀組織結構及斷口形貌特徵；
- Aim\ Enanthal diethyl acetal is prepared with heptaldehyde and triethyl orthoformate as raw materials. 目的研究以庚醛和原甲酸三乙酯為原料製備庚醛二乙縮醛的工藝條件。
- The substrate fructose-6-phosphate(F6P),the products fructose-1,6-bisphosphate(FBP) and phosphate(Pi) protected PFP against the DEPC modification,suggesting that the modified histidine residue resides at active sites. 底物F6P、產物果糖1;6-二磷酸(FBP)、P i及激活劑果糖2;6-二磷酸(F2;6BP)均可保護酶免被DEPC失活;底物PP i卻沒有保護作用.
- To establish a precticable method for quantifying of diethyl ketone(DEK)in the air of workplace. 建立可定量測定工作場所空氣中二乙基甲酮(DEK)的實用方法。
- Vapor-phase synthesis of N,N-diethyl aniline via diethyl ether over Al_2O_3 was studied. 採用乙醚作烷基化試劑,在氧化鋁催化劑上對氣相法N,N-二乙基苯胺的合成進行了研究。
