Experimental results were processed and it was found that 1: 1 adduct of alcohol and extractant was formed in every extraction process.

結(jié)果表明：萃取劑中絡(luò)合劑濃度越高欧美黄a网站，醇的分配系數(shù)越大网友自拍日韩经典视频；醇的分配系數(shù)受其水相平衡濃度的影響不顯著天天日天天干天天天添。

In this paper,microbial production of 2,3-BD was performed by Klebsiella pneumoniae using glucose or Jerusalem artichoke tubers as carbon source.Additionally,a novel aqueous two-phase system for the recovery of 2,3-BD from fermentation broth was developed employing short chain alcohol/inorganic salt.

針對(duì)這些問題，本論文研究了生物轉(zhuǎn)化法生產(chǎn)2特级大黄A片免费墦放久久，3-丁二醇的工藝欧美三级久久，并采用新型雙水相體系對(duì)發(fā)酵液中的2，3-丁二醇進(jìn)行分離萃取wwww.wwwww在线黄色视频，最后考察了利用廉價(jià)的非糧原料菊芋作為底物發(fā)酵2不卡A片在线看网站，3-丁二醇的可行性AV可以看的免费网站。

Examples of the liquid wetting agent include blends of glycols with water and/or an alcohol.

液體潤(rùn)濕劑的實(shí)例包括二醇與水和/或醇的共混物。

Yields from chiral bisoxazolines (5a) with diethyl oxalate using NaOCH〓 as base for the first time. The structures of chiral multioxazolines and their intermediates, multi (β-hydroxylamide) s, were characterized by 〓H NMR, IR, mass spectra and elemental analysis. The catalytic activities and enantioselectivities of chiral multi (β-hydroxylamide) s (4) and chiral multioxazolines (5～8) were investigated by using acetophenone and β-acetonaphthone as former chiral ketone, KBH〓 or NaBH〓 as reductive reagent in chapter three.

在此基礎(chǔ)上观看永久免费视频污网站，對(duì)合成方法作了創(chuàng)新欧美一级高清免费播放，以羧酸或酯為原料，在無(wú)催化劑的條件下與手性α-氨基醇反應(yīng)午夜国产激情视频，通過回流分水或脫醇的方法人人摸天天干，一步反應(yīng)合成了手性多噁唑啉（5～8），產(chǎn)率為89.2%～98.4%欧美日视频；以手性雙噁唑啉（5a）為原料天天色天天操综合，在NaOCH〓的作用下，與草酸二乙酯反應(yīng)亚洲欧洲自拍拍偷片区，首次合成了呋喃類雙嗯唑啉（6a）国产麻豆日韩在线观看网站视频，產(chǎn)率為72.9%～75.6%。

The results showed that adequate propionic anhydrate concentration (propionic anhydrate to menthol at molarratio of 1:1), proper enzyme amount and low water activity (water activity below 0.63) can increase selectivity of enzymatic reaction and improve resolution of menthol in ionic liquids.

結(jié)果發(fā)現(xiàn)亚洲欧美另类图片区，適量的丙酸酐濃度(丙酸酐和薄荷醇物質(zhì)量比為1：1)黄色片看看一区二区、合適的酶量100 U·ml~(-1和較低的水活度(水活度小于0.63)有助于提高催化反應(yīng)的選擇性，改善酶在離子液體中對(duì)薄荷醇的拆分效果四虎在线永久免费视频网站。

Study on removal rate of methyl mercaptan and ethanethiol by bio-trickling filter;2. The deodorizing effect of tea functional ingredients on methyl mercaptan (CH3SH) was studied in this investigation.

就茶葉功能成份對(duì)主要惡臭成分甲硫醇的去除效果進(jìn)行了研究，結(jié)果表明：綠茶水提取物A片无遮挡无码免费视频网站，兒茶素精品自拍一区，EGCG對(duì)甲硫醇的去除效果不明顯，而茶黃素則表現(xiàn)出較強(qiáng)的活性色妞www精品视频一级欧美；在pH10的堿性條件下全部色费特色黄特色大片看片，1mg含量為40%的茶黃素對(duì)甲硫醇的最大去除量為0。

Amino-monomethoxypoly(ethy1ene glycol)(mPEG-NH2) was synthesized based on the principle of Gabriel synthesis.Monomethoxypoly(ethy1ene glycol) tosylate was prepared at first,and then reaction with potassium salt of phthalimide as nucleophile to produce the monomethoxypoly(ethy1ene glycol)phthalimide derivative.

摘 要：首先合成了單甲氧基聚乙二醇對(duì)甲苯磺酸酯海外高清在线A片视频，然后根據(jù)蓋布瑞爾合成法原理免费看欧美强奸视频，以鄰苯二甲酰亞胺鉀鹽為親核試劑與mPEG-OTs反應(yīng)，生成單甲氧基聚乙二醇的鄰苯二甲酰亞胺衍生物国产在线观看无码免费Aa，mPEG-PI與水合肼反應(yīng)肼解生成伯胺色人人色人人操，合成了一端為氨基的單甲氧基聚乙二醇(mPEG-NH2)。

All of these straight chain alcohols for the effect of enhancement of RRS intensity which is the most sensitizing is the pentanol. It may be the size of the volume of pentanol is more suitable to form resonance enhancement and to create a more hydrophobic environment for MB-Hb aggregate.

所有的這些直鏈醇中使體系RRS增強(qiáng)最敏感的是戊醇三级片人夭视频网站，這也許是因?yàn)槲齑嫉捏w積大小更適合共振增強(qiáng)国产5加勒比区精品视频，并且為MB-Hb 聚合物創(chuàng)造了一個(gè)更加的疏水的環(huán)境。

In view of the problems of agglomeration and alcohol volatility exist in field application of phenolic resin cross linking agents containing alcohol used for profile control on high-temperature reservoir, experimental research is conducted on moving gel integrating technologies, formula composition, gelling time, effects of thermal stability. Therefore, KD-4 profile control formula, which takes water soluble pre-polymerization resin cross linking agent with methylolation as its main body.

針對(duì)中高溫油藏調(diào)驅(qū)中使用的含醇類酚醛樹脂類交聯(lián)劑在現(xiàn)場(chǎng)應(yīng)用中存在結(jié)塊免费偷拍视频、醇的揮發(fā)性等問題亚洲中文字幕三级在线网络，開展了可動(dòng)凝膠合成技術(shù)、配方組成男男精品视频一区二区、成膠時(shí)間欧美欧美日韩视频二区、熱穩(wěn)定性考察等試驗(yàn)研究人妖专区综合无码第一页，形成了以全水溶、高羥甲基化的預(yù)聚樹脂交聯(lián)劑為主體的KD-4型調(diào)驅(qū)體系配方爆黄爆黄的官网免费视频。

The esterification reaction and itsinfluencing factors of hexanoic acid with n-butanol, catalyzed by lipaseNovozym100T, were studied in water-in-oil microemulsions formed by alkylpolyglucoside C_(12)G_(1.50)/n-butanol/cyclohexane/water system.

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