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ether相关的网络例句

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与 ether 相关的网络例句 [注:此内容来源于网络,仅供参考]

For example, one of the components in phenyl magnesium bromide-ether solution is a complex.

例如,在苯基溴化镁和乙醚的溶液中就是如此。

States of mind and their properties are not theoretical posits like caloric, phlogiston, or the ether, but objects of direct experience (or better: experiences ).

心灵事态和它们的属性不是理论设定,就如热质、燃素、以太等,而是直接体验的对象。

Eliminativists cite cases in which entities (caloric, phlogiston, the ether are three commonly cited examples) postulated by scientic theories were subsequently abandoned. With the abandonment of the theories came abandonment of the entities.

取消主义者引用那些曾经被科学理论假设为存在但最后放弃的例子来佐证,对这些理论的放弃(继而也对这些东西的放弃)。

However,the extracts of the plants with petroleum ether,at the concentration of 5mg/mL,resulted in a mortality of(34.77%) or 19.22% with or without light treatment,respectively,showing the effects of photoactivation.

猪毛蒿精油浓度0.5 mg/mL和5 mg/mL时,不显示出光活化效应,但在1 mg/mL时则表现出显著的光活化效果,光照与非光照的死亡率分别为83.65%和24.15%。

Thereinto, the content of eucalyptus oil was the most with 27.20%, the next was Terpinen-4-OL (21.27%), N-methyl-laurotetanine (6.32%), Hepladecanoic acid (4.33%), Phytol (3.53%), Ether linoleic acid (3.45%), 2,6-dimethyl-2,6-octadiene (2.96%) and so on.

其中,含量最高的是桉油(27.20%),其次是松油烯-4-醇(21.27%)、N甲基山鸡椒痉挛碱(6.32%)、十七烷酸(4.33%)、叶绿醇(3.53%)、乙醚基亚油酸(3.45%)、2,6-二甲基-2,6-辛二烯(2.96%)等。

A quantitative size exclusion chromatcgraphic method was developed for studying the complexation reaction between a biscrown ether and potassium picrate in tetrahyrofurane.

用定量的体积排除色谱方法。研究了双冠醚和苦味酸钾在四氢呋喃中的配合反应。

The ammonia was evaporated under decreasing pressure, and the precipitate was filtered off and the liquid was poured into hot saturated picric acid solution to get picrate with a yield of 85.0%. The optimum process starting from imidazole-4,5-dicarboxylic acid was: imidazole-4,5-dicarboxylic acid in acetic anhydride was refluxed to get imidazole-4-carboxylic acid, and the product was esterification in ethanol with a catalyzer of concentrated sulfuric acid to get ethyl imidazole-4-carboxylate, at last the compound above was reduced by LiAlH4 in ether at room temperature to get the target compound, the total yield of this route was 49.6%.

以4,5-二羧酸咪唑为原料的较佳工艺:1 脱羧反应:4,5-二羧酸咪唑40g,醋酐1200ml,回流10h,过滤并将滤液浓缩至干,所得固体加至50%的乙醇溶液回流,过滤并将滤液自然冷却过夜,过滤得固体;2 酯化反应:4(5)-羧酸咪唑50g,乙醇1000ml和浓硫酸60ml,加热回流2h,5%浓度NaOH溶液调节至pH=8,减压浓缩至干,加入少量水回流,自然冷却过夜并过滤得固体;3 还原反应:LiAlH410g,乙醚300ml和4(5)-羧酸咪唑乙酯28g,常温反应1.5h,小心滴加25ml水后过滤,滤渣溶于300ml甲醇中并过滤,收集所得乙醚和甲醇滤液浓缩至干,将所得固体溶于300ml乙醇中加热回流,后将溶液浓缩至约30ml,冷却并过滤得固体,该路线总收率为49.6%。

The other for: safrole, sassafras oil, safrole different 82 yuan / kg; 1 - phenyl -2 - propanone 2,500 yuan / kg; 3.4 dioxane methylene diphenyl -2 - propanone 7200 yuan / ton; Piperonal 1,000 yuan / kg; N-acetyl-o-amino benzoic acid 11500 yuan / ton; anthranilic acid 15,500 yuan / ton; Phenylacetate 15,000 yuan / ton; acetic anhydride 9900 yuan / ton; trichloromethane 4100 yuan / ton ; anhydrous ether 8500 yuan / ton; piperidine 58000 yuan / ton; methyl ethyl ketone 10,000 won / ton; sulfate 1,200 yuan / ton; hydrochloride 400 yuan / ton; ethanol 4200 yuan / ton.

另供:黄樟素、黄樟油、异黄樟素82元/公斤;1-苯基-2-丙酮2500元/公斤;3.4 亚甲基二氧苯基-2-丙酮7200元/吨;胡椒醛1000元/公斤;N-乙酰邻氨基苯酸11500元/吨;邻氨基苯甲酸15500元/吨;苯乙酸15000元/吨;醋酸酐9900元/吨;三氯甲烷4100元/吨;无水乙醚8500元/吨;哌啶58000元/吨;甲基乙基酮10000元/吨;硫酸1200元/吨;盐酸400元/吨;无水乙醇4200元/吨。

The other for: safrole, sassafras oil, safrole different 82 yuan / kg; 1 - phenyl -2 - propanone 2,500 yuan / kg; 3.4 dioxane methylene diphenyl -2 - propanone 7200 yuan / ton; Piperonal 1,000 yuan / kg; N-acetyl-o-amino benzoic acid 11500 yuan / ton; anthranilic acid 15,500 yuan / ton; Phenylacetate 15,000 yuan / ton; acetic anhydride 9900 yuan / ton; trichloromethane 4100 yuan / ton ; anhydrous ether 8500 yuan / ton; piperidine 58000 yuan / ton; toluene 5200 yuan / ton; methyl ethyl ketone 10,000 won / ton; sulfate 1,200 yuan / ton; hydrochloride 400 yuan / ton; anhydrous Ethanol 4200 yuan / ton.

另供:黄樟素、黄樟油、异黄樟素82元/公斤;1-苯基-2-丙酮2500元/公斤;3.4 亚甲基二氧苯基-2-丙酮7200元/吨;胡椒醛1000元/公斤;N-乙酰邻氨基苯酸11500元/吨;邻氨基苯甲酸15500元/吨;苯乙酸15000元/吨;醋酸酐9900元/吨;三氯甲烷4100元/吨;无水乙醚8500元/吨;哌啶58000元/吨;甲苯5200元/吨;甲基乙基酮10000元/吨;硫酸1200元/吨;盐酸400元/吨;无水乙醇4200元/吨。

Methods The activitie of anti-lipidperoxidation of Chinemys Plastrum Testudinis of petroleum-ether, acetoacetate and 95% alcohol solution from two producing areas was studied by DPPH.

方法采用DPPH法分别测定两种不同产地龟板的石油醚、乙酸乙酯、95%乙醇等不同极性溶剂提取物的抗氧化活性。

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