氯乙酸

Results: The polymer taking MAA as functional monomer and acetic ether as solvent obtained higher selectivity for desloratadine.

结果：研究表明，采用MAA为功能单体，以乙酸乙酯做溶剂合成的地氯雷他定MIP对模板分子的结合性最佳。

To synthesize aryl pyrimidines by taking benzene, methyl benzene ,acetic ether,1,2-dichloroethane as solvent,the yield and purity of the product are high by taking methyl benzene as solvent.

分别选用苯、甲苯、乙酸乙酯、二氯乙烷作为溶剂合成桂皮酰哌啶，结果表明甲苯作为溶剂时产品纯度高，收率高，可用于大规模生产。

D (2,4-dichlorophenoxyacetic acid) A synthetic AUXIN used as a potent selective weedkiller.

2，4－二氯苯氧乙酸：是一种合成的植物生长素。

Slight stress corrosion cracking phenomenon occurred accompanying with a little dot corrosion. On the other hand, sensitised treatment will decrease the IGSCC resistance of stainless steel.

依据乙二醇蒸发器所处的实际工况，模拟了三种不锈钢材料的焊接接头在敏化状态和焊态下，在含有微量氯离子的甲酸乙酸介质环境中的腐蚀现象，实验结果表明：三种不锈钢材料的晶间腐蚀开裂敏感性很低，仅出现了轻微应力腐蚀开裂迹象，并且伴随轻微的点蚀。

The degradation of 2, 4-dichiorophoxyacetic acid (2, 4-D) by ozonation combined with sonication (03/US) was investigated. Based on the authors' first paper about the synergistic effect of ozone and US, this paper presents intermediate products of 2, 4-D degradation. The main intermediates were 2, 4-dichiorophenol, benzopuinone, hydroquinone and organic acids, such as maleic acid and oxalic acid and soon.

利用臭氧超声波联合工艺对苯氧羧酸类除草剂2，4-D进行降解研究，在前文探讨臭氧超声波之间协同效应的基础上，确定其中间产物种类主要有2，4-二氯苯酚、苯醌、氢醌以及小分子酸如顺丁烯二酸、草酸、甲酸、乙酸等。

METHOD:Venlafaxine was synthesized by steps of etherification,acid chloridization,amidation,Grignard reaction,reduction,salifying from 4-hydrophenylacetic acid.

该化合物以对羟基苯乙酸为原料，经醚华、酰氯华、酰胺化格氏反应、还原、成盐等步骤制备而成。

Methods: The protein and other impurity in the sample were precipitated by zinc acetate and potassium ferrocyanide after dipping of the sample. N,N-dichlorocyclohexylamine derived from sodium cyclamate by sodium hypochlorite in the filtrate was extracted by hexane. The HPLC separation was carried out with a phenomenex Gemini-C18 column using acetonitrile-water(7+3) or methanol-water (8+2) as mobile phase and detected by UV monitor at 314 nm. External standard method was used for quantification.

样品中甜蜜素浸提后，用乙酸锌和亚铁氰化钾试剂沉淀蛋白质等干扰杂质，过滤，用次氯酸钠将样品溶液中的甜蜜素转化为N，N-二氯环己胺经正己烷萃取后，在phenomenex Gemini-C18柱上，以乙腈－水(7+3)或甲醇－水(8+2)为流动相进行分离，HPLC-UV检测器在314 nm测定，外标法定量。

The tea drinker was extracted with ethyl acetate, and detected with FPD and LCD, the organochlorines and pyrethroids cleaned up with LC-Florisil SPE column.

试样茶汤用乙酸乙酯萃取，其中有机氯和菊酯类农药采用LC-Florisil SPE小柱净化，采用GC-FPD和GC-ECD检测。

Chloromethyl-4-hydroxyl-7-methyl-6,7-dihydrothiopheno pyrimidine,2-chloromethyl-4-methoxyl-7-methyl-6,7-dihydrothiopheno pyrimidine have been synthesized by the reaction of chloroacetamidine hydrochcoride 2-ethoxycarbonyl-4-methyl-tetrahydrothiophen-3-one and dimethyl sulphate in this paper.

以甲基丙烯酸乙酯、巯基乙酸乙酯和氯乙腈为原料高产率地合成了两种新型导电高分子单体化合物，并通过核磁氢谱、核磁碳谱、质谱等确定了它们的结构。

Optimization technology was acetidin: N-hexane (3:7) as low-pole solvent system, methanol: dichloromethane (1:9) as polar solvent system, 20% glycerol filter paper as moisturizer, 14 h age Bacillus subtilis as indicating strain seed on thin layer plate cultivated for 14~18 h, 1% TTC staining time 1~2 h, bacterial mix method suitable to 0.2%~0.6% agar semisolid bouillon culture-medium, bacterial spread method suitable to 1% agar semisolid bouillon culture-medium.

结果：该方法展开系统筛选简单，抑菌斑位置准确、斑点清晰，其优化条件为：以乙酸乙酯：正己烷(3：7)为弱极性展开系统，甲醇：二氯甲烷(1：9)为强极性展开系统，用20%甘油滤纸对湿室保湿，以14h菌龄的枯草芽孢杆菌为指示菌种子液，自显影薄层板36℃培养14~18h，1%TTC显色时间为1~2h，含0.2%~0.6%琼脂的半固体肉汤培养基应使用混菌法生物自显影，含1%琼脂半固体肉汤培养基应使用涂布法生物自显影。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。