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Chemical corporations within this region may provide matching chemical products and raw materials such as citric acid, starch sugar, L-lactic acid, nitrochlorobenzene, paranitrophenol sodium salt sodium para-nitro phenolate, pphenylenediamine , sodiumhydroxide, benzene anhydride, carbonic acid propylene grease, polyacrylamide ,2.4- dinitrochlorobenzene, 2.4- dinitrosixchlorin, and sodium cyanide.

区内化工企业可配套提供柠檬酸、淀粉糖、 L —乳酸、硝基氯苯、对硝基酚钠、对苯二胺、烧碱、苯酐、碳酸丙烯脂、聚丙烯酰胺、2.4—二硝基氯化苯、2.4—二硝基6氯、氰化钠等化工产品或原料。

Methods Using 4-chloro-2-nitroaniline as a starting compound, followed by substitution, reductive cyclization, oxidation, and chlorination, to give the key intermediate 2,7-dichloroquinoxaline (7), which reacted with different phenolic compounds to afford quinoxaline derivatives.

方法以4氯2硝基苯胺为起始原料经取代、还原关环、氧化、和氯代合成了中间体2,7二氯喹喔啉(7),再在喹喔啉的2位引入不同的取代酚结构单元,合成了一系列共9个新喹喔啉衍生物。

A reversed-phase high performance liquid chromatographic method was used to detect resorcinol and m-chlorophenol .

采用高效液相色谱法测定间二氯苯水解产物中间苯二酚、间氯苯酚的含量,以C18为固定相,V∶V=80∶20为流动相,检测波长为273 nm。

200 forepart pregnant women with ASA Ⅰ~Ⅱgrade who free will stop gestation,they were divided into 4 groups randomly :P group was simplicity propofol; F group, T group and K group was mainlined fentanyl 0.75μg/kg,tramadol 1mg/kg,ketamine0.2mg/kg respective before propofol abduction, and continuous d...

200例ASAⅠ~Ⅱ级、自愿终止妊娠的早孕妇女随机分为四组:P组,单纯异丙酚麻醉组;F组、T组、K组在异丙酚诱导前分别静注芬太尼 0.75μg/kg、曲马多1mg/kg、氯胺酮0.2mg/kg。

Methods Anhydrous acetic acid as solvent, 0.1 mol/L perchloric acid as titrant, crystal violet solution as indicator to establish non-aqueous titrations and ODS column as stationary phase, methanol and a mixture of 0.025 mol/L sodium phosphate monobasic and 0.02 mol/L sodium dedecyl sulfate (80:20) adjusted with phosphoric acid to a pH (4.8±0.1J as mobile phase, 220 nm as detective wavelength to establish HPLC-UV method for determination of piperazinylethylestrone drug substance; FMOC-CL as a derivatization reagent, FD as a detector to establish an HPLC method with derivatization and column switching for determination of piperazinylethylestrone in dog plasma.

分别采用无水冰醋酸为溶剂,0.1mol/L高氯酸为滴定液,结晶紫指示液指示终点的非水滴定法和HPLC-UV法测定哌嗪雌酚酮原料药含量;以FMOC-CL为衍生化试剂,采用柱切换柱前衍生化萤光检测的HPLC法测定狗血浆中哌嗪雌酚酮含量。

First of all, a systematic study on adsorption properties of the four phenolic compounds (phenol, p-chlorophenol, p-cresol and p-nitrophenol) on MX-4, AM-1 and NJ-8 was carried out, and a comparison of the adsorption behavior between the new resins and Amberlite XAD-4 was also made. In addition, the impact of the resin structure and the property of a specific compound on adsorption behavior was discussed herein.

用静态吸附法系统地研究了四种酚(苯酚、对氯苯酚、对甲苯酚、对硝基苯酚)在乙酰基修饰交联聚苯乙烯树脂(MX-4)、酚羟基修饰超高交联聚苯乙烯树脂(AM-1)以及氧修饰超高交联聚苯乙烯树脂(NJ-8)上的吸附行为并与AmberliteXAD-4树脂的吸附行为进行比较,探讨了树脂结构和化合物性质对吸附行为的影响。

With TEMPO(5 mol%) as the catalyst,N-methyl-N-phenyl-hydrazine(1.2 equiv.) as the amine source,the direct ortho-amination of 2-naphthols could be easily achieved.The reaction was carried out at room temperature under air atmosphere.

以5 mol%TEMPO为催化剂,1.2当量N-甲基-N-苯基肼作氨源,二氯甲烷为溶剂,空气中,室温下,实现了对2-萘酚邻位氨基化,可以高效的合成1-氨基-2-萘酚类化合物。

With TEMPO(5 mol%) as the catalyst,N-methyl-N-phenyl-hydrazine(1.2 equiv.) as the amine source,the direct ortho-amination of 2-naphthols could be easily achieved.

以5 mol%TEMPO为催化剂,1.2当量N-甲基-N-苯基肼作氨源,二氯甲烷为溶剂,空气中,室温下,实现了对2-萘酚邻位氨基化,可以高效的合成1-氨基-2-萘酚类化合物。

The quick results cold capsule contains have calculus bovis factitius , pedantic chlorobenzene pain namely agile , caffeine and acetophenetidin aminophenol internally , is that one kind of the people who is not that steroid is similar to analgesic-antipyretic , irritability body constitution is convinced among them to acetophenetidin aminophenol 责任编辑:admin

速效感冒胶囊内含有人工牛黄、酸氯苯即敏、咖啡因和乙酰氨基酚痛,其中对乙酰氨基酚痛是一种非类固醇类解热镇痛药,过敏体质的人服用,可致粒细胞减少,过敏性皮炎;若肾成果减退的病人服用,可致间质性肾炎,以致引起急性肾成果干涸。

In this study, Cryptomeria japonica was liquefied in phenol with H2SO4 and HCl as a catalyst. The epoxy resin was synthesized from epichlorohydrin and bisphenol A with the molar ratio of 5/1. Blending resins were prepared by mixing the liquefied Japanese cedar and epoxy resin with weight ratios of 30/100, 50/100 and 70/100, and the triethylene tetramine was added as a cross-linking hardener. The effect of mixing ratios of liquefied Japanese cedar to epoxy resin and amount of hardener added on the reactivity of blending resins and the properties of cured resins were investigated. Furthermore, polysiloxane and rice husk were added as foaming agent and filler, respectively, to the epoxy resin and blending resins. The foaming process, the bubbles shape, the mechanical properties, and the thermal stability of the epoxy foams were investigated.

中文摘要本研究将柳杉(Cryptomeria japonica; Japanese cedar)木材以酚为溶剂,H2SO4及HCl为催化剂进行液化处理,另以莫耳比5/1之环氧氯丙烷与双酚A反应合成环氧树脂,并将液化柳杉与环氧树脂以重量比30/100、50/100及70/100混合制备掺合树脂,并以三乙基四胺(Triethylene tetramine; TETA)为架桥硬化剂,探讨液化柳杉与环氧树脂混合比及硬化剂添加量对其掺合树脂之反应性,及其硬化树脂性质之影响;进一步於环氧树脂与掺合树脂中添加聚矽氧烷为发泡剂,稻壳粉为填料制备发泡体,探讨其发泡体之发泡过程、泡体形态、发泡体机械性质与热稳定性。

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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

第三章汉藏语&的&字结构的类型划分。