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三氯甲烷

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Methods: The method used direct sampling technique to determinate chloroform, bromodichloromethan, dibromochloromethane, bromoform, which was seperated by tube column, detected by electronic capture detector and determined by inner standard method.

水样直接进样,用毛细管柱色谱分离,电子捕获检测器检测,采用内标法定量,可同时测定水中三氯甲烷、一溴二氯甲烷、二溴一氯甲烷和溴仿。

Methods: The twelve volatile halogenated hydrocarbons (1, 1-dichloroethene, dicloromethane, trans-1, 2-dichloroethene, cis-1, 2-dichloroethene, chloroform-1, 1, 1-trichloroethane-1, 2-dichloroethane, tetrachloromethane, bromodichloromethane, dibromochloromethane, tetrachloroentene and bromoform) in drinking water were determined by headspace capillary gas chromatography.

采用顶空毛细管柱气相色谱法测定饮用水中1,1-二氯乙烯、二氯甲烷、反-1,2-二氯乙烯、顺-1,2-二氯乙烯、三氯甲烷、1,1,1-三氯乙烷、1,2-二氯乙烷、四氯化碳、一溴二氯甲烷、二溴一氯甲烷、四氯乙烯及三溴甲烷等12种挥发性卤代有机物。

This resin has a good absorbency with the organic chlorohydrocarbon solvent, for example, Chloroform 38 g/g, chlorobenzene 31 g/g.

该树脂对含氯的有机溶剂具有较高的吸附性,最高可吸三氯甲烷38g/g,氯苯31g/g。

Objective To investigate the chemical constituents of the petroleum and the chloroform extracts of Ledum palustre L.

目的对细叶杜香石油醚和三氯甲烷部位的化学成分进行研究。

And chloroform, which can be used for synthesis of heroin and other narcotic drugs.

三氯甲烷三类可供制造海洛因等毒品的化学品实行出口管制。

The insolubility of PHB in chloroform which pretreated at over 120℃ and its mechanism were studied for the first time.

首次发现了PHB在120℃—180℃真空加热处理后会改变其在三氯甲烷等有机溶剂中的溶解性;溶解的程度与加热处理的温度、加热时间和被处理样品的分子量有关。

Practically insoluble in water; soluble 1 in 50 in alcohol, 1 in 50 in chloroform; slightly soluble in ether.

几乎不能溶解在水中;可溶物1 在50 在酒精里, 1 在50 在三氯甲烷里;轻微地可溶解在以乙醚里。

The company mainly engaged in the National one of the top ten chemical companies Juhua Products Group, the main one has Chloromethane, dichloromethane, chloroform, cyclohexanone, cyclohexane, caprolactam, PVC resin, sulfuric acid amine, F11, F12, F22, R600A, R134A refrigerant, antiseptic products, welcome you Tongren call letter and look forward to your cooperation and common development!

公司主要经营全国十大化工企业之一的巨化集团公司的产品,主要有一氯甲烷、二氯甲烷、三氯甲烷、环己酮、环己烷、己内酰胺、PVC树脂、硫酸胺、F11、F12、F22、R600A、R134A制冷剂等产品,欢迎各位同仁来电来函,期待能与你们合作,共同发展!

Methane chloridate , general name of monochloro methane , dichloro methane , trifluoro methane and tetra chloromethane mainly composed of natural gas and liquefied chlorine gas , can not only be used as solvent , degreasant , decolourant , aerosol , freezing medium and detoxicator , etc .but also the raw material for the production of medicine , pesticide , organic ailicon and organ fluorine , etc.

甲烷氯化物是包括一氯甲烷、二氯甲烷、三氯甲烷、四氯化碳四种产品的总称。甲烷氯化物除可作为溶剂、脱脂剂、漂白剂、氯雾剂、制冷剂、灭火剂、麻醉剂等以外,还是生产医药、农药、有机硅和有机氟系列产品等原料。

The excess molar volumes of {1,8- cineole +CCl 4,+CHCl 3} were determined as a function of mole fraction x using a vibrating-tube densimeter at the temperatures 298 15 and 308 15K All mixtures exhibit negative values over the entire composition range at both temperatures.

在 2 98 15K和 30 8 15K下用振动管密度计在全浓度范围内测量了桉叶油素分别与四氯化碳和三氯甲烷构成的二元系的过量摩尔体积。这 2个二元系的过量摩尔体积均为负值,且桉叶油素与氯仿的过量体积显著大于桉叶油素与四氯化碳的过量体积

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