Glucose, formic acid and levulinic acid were not detected in the liquors of acid hydrolysis and the concentration of xylose and arabinose was high, while the acetic acid was low. The mixture of monosaccharides and fatty acid was efficiently separated and the whole process of separation was finished within 23 minutes.

通過對樣品的分析表明，麥糟水解液中不含有葡萄糖谁有可以直接看av的网站、甲酸及乙酰丙酸在线观看黄A片免费AV网站，木糖和阿拉伯糖的質(zhì)量濃度比較高，乙酸的質(zhì)量濃度比較低欧美www在线观看，單糖及脂肪酸的混合液得到很好的分離怡红院老首页主页入口，分離過程在23min內(nèi)完成。

A catalytic cycle is postulated, in which the oxidative decarboxylation of diphenylacetic acid involves the interaction of a high-valent Mn-oxo species with the substrate.

二苯基乙酸的氧化脫羧可能涉及高價(jià)的含氧錳物種與反應(yīng)物間的相互作用日韩丝袜清纯自拍视频在线观看，提出了可能的反應(yīng)機(jī)理亚洲欧美自拍另类日韩。

The results show that the yield of butyl acetate using the catalysts prepared with the concentration of H2SO4 by 0.5 mol·l-1 and the calcination temperature of 550℃ is the best,which is up to 52.5% when the molar ratio of butyl alcohol to acetic acid is 1:1.3 and without addition of entrainer in the hermetic reactor.

結(jié)果表明采用硫酸浸漬液濃度為0.5mol/L，焙燒溫度為550℃時(shí)所制備的催化劑在正丁醇和乙酸的物質(zhì)的量比為1.3及不添加任何帶水劑的密閉條件下酯化效果最好国产精品自拍一区在线播放，酯化率為52.5%欧美性爱A√视频在线。

OTUs were got from the 60 clones of eubacterium belonged to 5 phylums, ten of which were HPA communities that can turn the VFAs into H2/CO2 and acetic acid.

測得的60個(gè)真細(xì)菌序列中共得到17個(gè)OTU，分別屬于Chloroflexi和Proteobacteria等5個(gè)不同的門av呦呦，10個(gè)序列為可利用有機(jī)揮發(fā)酸生成H2/CO2和乙酸的HPA菌群欧美特黄岛国片免费看。

The recovered ionic liquid was reused for four times with gradual decrease in the yield of phenylacetic acid.

在連續(xù)的4次離子液體回收利用過程中，隨著離子液體使用次數(shù)的增加苯乙酸的產(chǎn)率逐漸降低久久青草国产精品一区。

Goodcatalytic activities of the phosphine palladium complexes were observed incarbonylation of benzyl chloride with atmospheric CO. In some reactions the yieldof phenylacetic acid was 91% and the catalyst could be reused repeatedly in severaltimes.

這些鈀配合物催化芐基氯的常壓羰基化反應(yīng)有較好的催化活性免费黄色片999，有些反應(yīng)中苯乙酸的產(chǎn)率可達(dá)91％，可重復(fù)使用人人操人人干人人爱人人做，是一類環(huán)境友好的新型綠色催化劑在线无码观看黄片。

The key point for preparing the isolated 1D metal driven nanowires is the non-stoichemetric additions of metal ions and thiolic ligands.

其中，金屬離子與巰基乙酸的非等量反應(yīng)是分離狀態(tài)螺旋結(jié)構(gòu)的納米帶形成的主要原因一级大黄片欧美性爱。

In the third chapter, eight new complexes of 4, 6-dimethylpyrimidine 2-thioacetic acid with rare earth metals has been synthesized and characterized by means of elemental analysis, molar conductivity, IR,〓 NMR and TG-DTA. The general formula of the complexes is Ln〓(n=4 or 5). In the complexes, the deprotonated ligand coordinated to the rare earth metal ions in chelate bidentate mode. 4 or 5 molecular of crystal water existed in the complexes.

第三章合成了八種4全球持级黄毛片免费，6-二甲基嘧啶-2-硫代乙酸的稀土配合物，通過元素分析一级夫妻生活a片在线观看、摩爾電導(dǎo)久久精品免费福利网、紅外光譜、核磁共振氫譜和熱重-差熱對配合物進(jìn)行了表征大家操大家日超碰，研究結(jié)果表明福利视频免费，配合物的組成為Ln〓n=4或5），在配合物中配體羧基脫去質(zhì)子后采用螯合雙齒的方式與稀土離子形成配位鍵久久精品视频大全，同時(shí)手噜国产，配合物中含有4或5個(gè)結(jié)晶水99这里只有精品99。

A product containing 0.08% peracetic acid plus 1.0% hydrogen peroxide has been cleared by the FDA as a liquid chem- ical sterilant for use on semicritical medical devices.

一種含有加入1.0％過氧化氫的0.08％的過氧乙酸的產(chǎn)品已經(jīng)被FDA批準(zhǔn)作為液體化學(xué)滅菌劑用于中度危險(xiǎn)性醫(yī)療器械。

The results show that the transition between the ferroelectric phase and the paraelectric phase is postponed,the Curie point of TFTGS single crystals is improved and inner bias voltage field is produced by doping trifluoroacetic acid although the pyroelectric properties of the c.

結(jié)果表明精品国产污污的网站，三氟乙酸的摻入雖然使熱釋電性能有一定程度下降,一级不卡黄色视频免费观看，但卻使得晶體鐵電-順電相轉(zhuǎn)變延遲，提高了晶體的居里點(diǎn)男女赤裸裸插鸡视频在线观看，并產(chǎn)生了一定的內(nèi)偏壓場91色国产在线。