苯基的

Objective To establish a HPLC method for the determination of aceclofenac in human plasma.Methods Acidified samples of plasma (500μL) were extracted with 4 mL of ethyl acetate. The organic phase was evaporated to dryness by nitrogen at 40℃ water bath. The residue was redissolved in mobile phase and then was determined.

醋氯芬酸是一种具有镇痛作用的非甾体类抗炎药物[1]，化学名为[邻-(2，6-二氯苯基)氨基]苯乙酰乙酸，l992年首先于西班牙上市，具有明显广泛的抗炎作用和强力的解热镇痛作用，其生物半衰期较双氯芬酸长，胃肠耐受性较双氯芬酸好，抗炎活性优于萘普生和保泰松[2]。

The acetyl chloride can lead a nearly complete substitution of phenyl groups with chlorine on silicon atoms.

在乙酰氯的作用下，n上的苯基能够被近乎完全的取代而生成氯代聚硅烷。

It is suggested that the scission is preceded by an aldol condensation, followed by a phenolic hydroxyl participation with scission of the C---C in the β-hydroxy-ketone formed.

经推论这一断键反应首先是发生羟醛缩合，继以在酚羟基参与下引发烷羰C－C键断裂的；还应指出，也是由于对位羟基的参与，这些烷基对羟苯基酮不形成它们的乙醇缩酮。

Two complexes of alkaline-earth metals perchlorate with phenyl-acetylmethylene sulfoxide(C6H5SOCH2 COCH3) have been synthesized and characterized by elemental analysis and IR spectra.

本文选取苯基乙酰甲基亚砜(C6H5SOCH2COCH3)作为配体与碱土金属的高氯酸盐反应得到配合物的单晶，对它们进行了元素分析及红外光谱表征，它们的化学式为[ML6](ClO4)2(M=Ca、Sr；L=C6H5SOCH2COCH3)。

Under catalysis of AlCl3, trans-1-chloro-3-phenyl-1-propen-3-one was first prepared using benzoyl chloride and acetylene in CH2Cl2 at 20~25℃, which the yield is 7% higher than that in CCl4 at 40~45℃.

通过对其反应条件的研究，首次用苯甲酰氯和乙炔在三氯化铝作用下合成出反－3-苯基－1-氯－1-丙烯－3-酮；并发现用二氯甲烷作介质在20~25℃下的反应产率，比用四氯化碳作介质在40~45℃下的反应产率约高7%。

When ATRP of styrene was investigated with 1-phenylethyl bromide/benzyl a,a-dibromide mixture as initiator, the GPC chromatogram shows two elution peaks and the molecular weighs of the peaks are approximately in a 2/1 ratio. It suggests that benzyl dibromide is a difunctional initiator of ATRP of styrene. The analysis of end group using 1H-NMR also proves the result above.

采用1-苯基溴乙烷／α，α-二溴化苄混合引发剂进行苯乙烯的ATRP反应时，所得聚苯乙烯的GPC谱图为双峰，分子量相差一倍，初步证明了α，α-二溴化(来源：ABf399C论文网www.abclunwen.com)苄引发苯乙烯ATRP反应时是双官能引发剂，并用~1H-NMR对聚合物结构进行分析，进一步证明了α，α-二溴化苄引发苯乙烯ATRP时是双端同时增长的。

Meso-Tetrakis(2,6-dichlorophenyl)porphyrinmanganese chloride and carbonyl ruthenium meso-tetrakis(2,6-dichlorophenyl)porphyrin were prepared and used to catalyze the diastereoselective epoxidation and amidation of 3β-substituted Δ 5-steroid derivatives.

研究了 5 ，10 ，15 ，2 0 (2 ，6 二氯苯基)卟啉锰及其钌配合物这类非手性的催化剂催化3β取代的Δ5 甾体衍生物的非对映选择性环氧化及酰胺化反应。

Azobenzene functionalized polyelectrolytes and polyamphiphiles are novel functional polymers with many interesting characteristics such as the photo-responsive properties based on the photo-induced cis-trans isomerization, the ability to build up ordered supramolecular structure, and the sensitivity to the environmental stimuli. The aim of this dissertation is to investigate the rules that control the formation of ordered structures from the azo polyelectrolytes and polyamphiphiles based on the supramolecular interaction, to explore the relationships between the material functionality and the supramolecular self-assembled structures at different levels, and to establish the methods for producing novel materials with potential applications in photonic and electronic areas.

中文题名光响应性偶氮聚电解质自组装及超分子结构的研究副题名外文题名 Self-assembly and supramolecular structure of photoresponsive azo polyelectrolytes 论文作者庹新林导师刘德山教授学科专业材料学研究领域\研究方向高分子材料学位级别博士学位授予单位清华大学学位授予日期2002 论文页码总数162页关键词聚电解质超分子结构自组装偶氮聚电解质馆藏号BSLW /2003 /O631 /38 偶氮聚电解质和两亲性偶氮聚合物是一类新颖的功能性聚合物，同时具有偶氮苯基团的光响应性、聚电解质和两亲性聚合物在适当条件下形成各种有序结构及其结构对周围环境具有敏感响应性等特点。

Imposex in Gastropods from the Coastal Waters of China and the Biomonitoring of Organotin Compound Contamination Organotin compounds, especially tributyltin and triphenyltin , are widely used as biocidal additives in antifouling paints due to their effectiveness. However, they also cause damage to non-target organisms and are regarded as the most toxic material ever deliberately introduced into the sea.

有机锡化合物，尤其是三丁基锡(tributyltin，TBT)和三苯基锡(triphyltin，TPhT)因其良好的杀生效果而广泛应用于船舶防污漆，但同时对海洋生态系统也造成了严重的影响，并且被认为是迄今为止人为引入海洋环境中毒性最大的物质之一。

The carrier gas is nitrogen, headspace plate temperature is 70℃.

方法使用配置顶空进样的气相色谱仪，以水为溶剂，色谱柱为 Agilent DB-624毛细管色谱柱（6%氰丙基苯基-94%二甲基聚硅氧烷），柱温：40℃，保持 12min ，以30℃· min-1 的速度升温至100℃，保持 5min ，再以40℃· min-1 的速度升温至240℃，保持 5min ；以氮气为载气，柱流速0.7mL · min-1 ；氢火焰离子化检测器；顶空加热盘温度70℃。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。