甲基

Methods The activities of liver microsomal erythromycin N-demethylaseand aminopyrine N-demethylase were measured by spectrophotometry. The levels of mRNA expressions of CYP3A1, CYP1A2, CYP2E1, mdrla and mdrlb in hepatic microsome were determined with RT-PCR method.

用分光光度法测定大鼠肝微粒体红霉素N-脱甲基酶、氨基比林N-脱甲基酶的活性，用逆转录聚合酶链反应技术测定大鼠肝脏CYP3A1、CYP1A2、CYP2E1、mdr la和mdr lb基因的水平。

The anionic polymerization of octamethylcyclotetrasiloxane (D4) catalyzed by tetramethyl ammonium hydroxide in the presence of water under conditions of high temperature and oxygen-off was investigated.

以八甲基环四硅氧烷为单体，四甲基氢氧化铵为催化剂，微量水为链封端剂，进行有水条件下环硅氧烷阴离子开环聚合。

The polymethyl methacrylate material with super-hydrophobic surface of the invention is prepared in the following steps: 1 the polymethyl methacrylate material is first put into diamine solution, so that the ester group on the surface of the material has ammonolysis reaction with diamine molecules; 2 and then, the product of the step 1 is put into long chain fatty acid solution to be treated and the solvent is volatilized, so as to obtain the polymethyl methacrylate material with super-hydrophobic surface.

本发明具有超疏水表面的聚甲基丙烯酸甲酯材料，是按照如下步骤进行制备的：1将聚丙烯酸甲酯材料先置于二胺溶液中使聚丙烯酸甲酯材料表面的酯基与二胺分子发生氨解反应；2然后，将其置于长链脂肪酸溶液中进行处理，挥发掉溶剂，得到具有超疏水表面的聚甲基丙烯酸甲酯材料。

Waste minimization in ammonolysis process of O,O-dimethylphosphorochloridothioate;2. An Investigation on the Micelle-Catalytic Hydrolysis and Ammonolysis of Carboxylic Acid Esters;3. The final product is generated by ammonolysis of the compound under high pressure.

以4-溴-1，8-萘酐为原料，用2，4-二甲基苯胺在醋酸中与之反应得到N-2′，4′-二甲基苯基-4-溴-1，8-萘酰亚胺，然后将NDNA在高压下用氨水进行氨解得到最终产品。

Dimethylhexane-1,6-dimethyleurethane is the key material for preparation of 1,6-hexamethylene diisocyanate by non-phosgene route. Our work mainly focuses on the study of the catalytic performances of metal oxysalts and metal oxides for the ammonolysis of DMC to HDU-M. Experiment effect showed the ammonolysis was omposed by two steps, in which the first step was easier to occur than the second.

中文摘要六亚甲基-1，6-二氨基甲酸甲酯是非光气合成六亚甲基二异氰酸酯的关键原料，本文主要对金属含氧酸盐和金属氧化物这两类用于碳酸二甲酯胺解合成HDU-M 的催化剂进行了初步研究并优化了工艺条件。

Based on the possible degradation products, Microbial degradation pathways of metsulfuron-methyl is concluded as follows: after the cleavage of the sulfonylurea bridge, 2-amino-4-methoxy-6-methyl-triazine is demethylated and the annularity reaction of sulphanilamide occurs.

甲磺隆主要降解途径首先是脲桥的断裂，然后6-甲氧基-4-甲基-2-氨基-三氮嗪进一步脱甲基，而磺酰胺类物质将进一步脱氨基环化。

However, the apparent frequency factor of curing increases with the increase of the catalyst , being one order of magnitude higher with 0.6 % catalyst than without.

在空气中增高温度时其侧基破坏分为二个阶段，即甲基比苯基先破坏。当引入聚铝苯基硅氧烷作为硅树脂固化催化剂，可提高其甲基的起始分解温度，同时降低苯基的起始分解温度。

Results: The linear ranges for inorganic arsenic, monomethylarsonic acid and dimethylarsonic acid were all from 5.0 to 100.0 μg/L The detection limits of As(superscript 3+), As(superscript 5+), monomethylarsonic acid and dimethylarsonic acid were 0.05 mg/kg. The recoveries of the method were 78%-110%(n=6), and the relative standard deviations were

结果：本方法的三价砷、五价砷、一甲基砷和二甲基砷在5.0~100.0 μg/L范围内有良好的线性，方法的测定低限均为0.05 mg/kg；实验表明方法对不同海产品的回收率在78%~110%之间，相对标准偏差在3.0%~12.2%之间。

Blanc chloromethylation is a very classical reaction, which is a very important method on inducting chloromethyl in aryl hydrocarbon.

B1anc氯甲基化是一种很经典的反应，是在芳香族化合物中引入氯甲基的重要方法。

A method for determination of basic nitrogen-containing compounds in mainstream smoke was established. In the condition of basic substance barium hydroxide powder and extractant chloroform, 18 basic nitrogen-containing compounds were analyzed by gas chromatography-selective ion monitored-mass spectrometry, such as pyridine, 2-methylpyridine, 2-methylpyrazine, quinoline and indole, etc.

在氢氧化钡碱性环境中，以三氯甲烷为萃取剂，采用气相色谱－选择离子监测－质谱法测定吡啶、2-甲基吡啶、2-甲基吡嗪、喹啉、吲哚等18种碱性含氮化合物。

My first article for Screen Power Magazine, which is to this day is the official magazine of Jackie Chan, was a DVD review of the Hong Kong actioner Gen-X Cops, starring Nicholas Tse and Daniel Wu.

我的第一篇文章为屏幕力量杂志，在对这天是Jackie Chan 正式杂志，是香港actioner Gen X 警察的DVD 回顾，担任主角Nicholas Tse 和丹尼尔吴。

His lips grazed hirs, Now what are you going to do?

他的唇使吃草了 hirs，现在你将要做什麼？