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It is to be understood that when in this Specification we speak of a dialkyl carbonate and similarly of a dialkyl phenylmalnate, that term does not imply that the two alkyl groups are necessarily the same.

有一点要理解:在说明中我们提到二烷基碳酸酯,相似的我们还提到了二烷基苯基丙二酸酯,这两个术语并不是暗示这两个烷基官能团必须是一样的。

This method is simple, rapid, accurate and effective for testing the impurity dibenzyl-(2-chlorophenyl) methanol in Clotrimazole and Betamethasone Dipropionate cream and for its content determination.

所建方法准确、简便、快速,适用于克霉唑倍他米松乳膏中克霉唑和二丙酸倍他米松的含量测定和杂质二苯基-(2-氯苯基)甲醇的含量测定。

Omeprazole racemate was resolved respectively by simulated moving bed chromatography and batch chromatography with the coated cellulose triphenylcarbamate as chiral stationary phase and ethanol containing 0.1% diethylamine as mobile phase.

用纤维素三苯基氨基甲酸酯涂敷型手性固定相和含0.1%二乙胺的乙醇溶液,研究了模拟移动床色谱和间歇色谱对奥美拉唑对映体的拆分。

When pumped with 800 nm laser irradiation, 2 {4 [2 (4 dimethylamino phenyl vinyl] phenyl} ethylamino ethanol and 2 {4 [2 (4 diethylamino phenyl vinyl] phenyl} ethylamino ethanol show strong two photon induced blue fluorescence at 436 and 440 nm respectively, while DMANHAS and 4 nitro benzoic acid 2 {4 [2 (4 diethylamino phenyl vinyl] phenyl} ethylamino ethyl ester exhibit no fluorescence.

在800 nm的飞秒脉冲激光激发下,反式-4-(N-羟乙基-N'-乙基氨基)-4'-二苯乙烯和反式-4-(N-羟乙基-N'-乙基氨基)-4'-二苯乙烯均发出较强的蓝紫色上转换荧光,荧光峰分别位于436和440 nm,而DMANHAS和反式-4-[N-(乙氧基羰基-4-硝基苯基)-N'-乙基氨基]-4'-二苯乙烯没有荧光。

The presence ofelectron donor(methoxy or methylenedioxy group) and electronacceptor anhydride group) moieties on phenyl fulgide derivativesleads to an intramolecular charge transfer upon exication that results ina solvatochromic effect.

可将苯基俘精酸酐视为由给电子基和得电子基两部分组成,分子内的电荷转移是造成正溶剂效应的主要原因。

The Stille coupling reaction between 8 iodo 9 benzyl 9H purine and RSnBu 3 (R=vinyl,2 thienyl,2 furyl,phenylethynyl and phenyl) was studied using (Ph 3P) 2PdCl 2 as catalyst and DMF as solvent.

采用 (Ph3 P) 2 PdCl2 为催化剂,DMF为溶剂,对 8 碘 9 苄基 9H 嘌呤与有机锡试剂RSnBu3 (R=乙烯基、2 噻吩基、2 呋喃基、苯乙炔基和苯基等)之间的 Stille偶合反应进行了研究,合成出了5种 8位取代的嘌呤衍生物。

In the present work poly is prepared by chemical vapor deposition polymerization from [2.2] paracyclophane. Thermal gravimetrical analysis is used to study the thermal degradation. It is found that the onset of thermal degradation of poly in air is much lower than that in N2 due to the existence of O2 in the air.

用化学气相沉积聚合法制备了聚对亚苯基二亚甲基膜,由傅立叶变换红外光谱图证实了其化学结构采用热重分析研究了PPX的热降解性能,结果表明,在空气氛围中由于氧气的参与,其热稳定性比在N2中差,热氧化降解明显。

Resolution of benzoin,hydrobenzoin and α- phenethyl alcohol with-phenylglycine based chiral stationary phase(Chirex 3001)in the normal-phase conditions were studied.

正相模式下研究了安息香、氢化安息香及α-苯乙醇在苯基甘氨酸型手性固定相Ch irex 3001上的拆分,探讨了流动相组成及柱温对手性拆分效果的影响。

Results Eleven 2-substituted phenyl-5-(3'-indolyl)-oxazoles were prepared, the compounds 21 and 22 have shown antioxidative activity 3-4 times stronger than that of Vit E, and the compound 29 showed antioxidative activity almost as same as Vit E.

结果 合成了11个2-取代苯基-5-(3'-吲哚基)-恶唑衍生物,其中化合物21和22的活性比维生素E强约3~4倍;化合物29的活性与维生素E相近。

The results obtained here can afford valuable information for the study of other photosensitive system contained monoaryl iodonium.

该结果对研究其它单苯基碘鎓盐的光敏体系提供了有价值的信息。

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Shop assistant: Please check at the door.

店员:请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后,对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论,结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。

Quick stop! AIDS doctors while the side and say hello and colleagues mention a blood sample box, the Red Cross had sent blankets and so on, with patients有说有笑to go home.

快停车!防艾医生们一边招呼一边和和同事们提着血液采样箱,抱着红十字会送来的被子等,有说有笑地同患者往家走。