目的研究中药辛夷二氯甲烷提取物的药理作用。
Object To study the pharmacological effects of CH 2Cl 2 extract of Flos Magnoliae.
二氯甲烷-乙醇等混合溶剂是HPMCAS的良溶剂；
The dichloromethane-ethanol system was the excellent solvent for HPMCAS.
样品采用丙酮提取，然后使用二氯甲烷对提取液进行萃取。
The triadimenol could be extracted with acetone, and then re-extracted with dichloromethane.
采用天然气热氯化法生产二氯甲烷以供感光材料工业作溶剂。
Use of natural gas for heat chlorination methylene chloride for the production of photographic materials for industrial solvent.
目的建立工作场所空气中二氯甲烷的溶剂解吸气相色谱测定方法。
To establish a gas chromatography method for solvent desorption of dichloromethane in the air of workplace.
注意事项(1)二氯甲烷加入五氧化二磷蒸馏，加入分子筛储存。
Note. (1) The dichloromethane is distilled from phosphorus pentoxide and stored over molecular sieves.
主营甲醇，乙醇，乙二醇，丙酮，二氯乙烷，二氯甲烷，二乙二醇。
Main methanol, ethanol, ethylene glycol, acetone, ethylene dichloride, methylene chloride, diethylene glycol.
反应后用二氯甲烷萃取，无水硫酸钠干燥，除去溶剂后得到纯净产物。
After reaction, the purified product was obtained through extraction with dichloromethane, drying with anhydrous sodium sulfate and desolventizing.
生产工艺过程产生的丙酮，原料挥发产生的二氯甲烷、丙酮等产生量较小。 缪。
Thee output of acetone and dichloromethane which raw material volatilized is little.
在室温条件下，采用体积比4∶1的甲醇和盐酸混合溶液提取，用二氯甲烷萃取。
Under room temperature conditions, spinach was extracted with methanol-HCl (4:1 by vol), followed by a second extraction in methylene dichloride.
催化烷基氯和苯的反应，其中二氯甲烷和苯反应得到5倍量的单一产物二苯甲烷。
This system also can catalyze the reaction of benzene with alkyl chloride, in which only the desired diphenylmethane is isolated in good yield (5 equiv. ).
中国国内二氯甲烷用于医药行业的数量约为二氯甲烷总销售量的15- 20%。
The amount of Chinese domestic dichloromethane used in the medicine industry is about 15-20% of the total sales quantity of dichloromethane.
目的研究山茱萸生、制品二氯甲烷萃取部位对D-半乳糖致衰小鼠骨髓细胞的影响。
Objective To study the influences of dichloromethane extraction from crude and processed Cornus Officinalis on bone marrow cells of aging mice induced by D-galactose.
MS分析显示：烟叶表面二氯甲烷萃取物和叶内萃取物在化学成分方面存在质和量的差异。
The GC-MS composition analysis indicated that there were significant differences between surface extraction and inside extraction in quality and quantity.
以二氯甲烷为萃取剂对茅台迎宾酒中的微量成分进行了萃取，然后用真空旋转蒸发器将其浓缩。
Dichloromethane was used as extracting agent for the extraction, and then vacuum rotatory evaporator was used for the concentration.
本文确定了药物合成过程中经常使用的有机溶剂（乙醇、乙腈、二氯甲烷）残留量的检测方法。
This thesis introduces the test and demonstration of checking method of ethanol, methyl cyanide and dichloride methane which are forbidden.
实验结果表明，采用甲醇、二氯甲烷的混合物作为展开剂可较好地分离6位及4位蔗糖乙酸酯。
The results show that it is easy to separate sucrose-6-acetic ester from sucrose-4-acetic ester, using carbinol and dichloromethane as unfolding agent.
目的：建立一种气相色谱法测定原料药头孢唑肟钠中二氯甲烷和四氢呋喃有机溶剂残留量的方法。
Objective: We detected the content of methylene chloride and diethylene oxide in Ceftizoxime Sodium using head-space GC method.
用活性碳吸附管采集大气中的苯系物，二氯甲烷替代二硫化碳作为脱附剂，毛细管气相色谱分离分析。
BTEX in air were adsorbed by active carbon tube, replaced carbon bisulfide by dichloromethane as reagent, analyzed by using Capillary GC-FID.
目的建立溴芬酸钠原料中二氯甲烷、甲苯、1，2-二甲氧基乙烷、乙酸乙酯、乙醇残留量测定方法。
Objective To establish a method for detection of dichloromethane, 1,2-dimethoxyethane, toluene, ethyl acetate and ethanol in bromfenac sodium.
方法用高分辨液质联用分析法，对其甲醇提取物及二氯甲烷和乙酸乙酯混溶剂提取物进行了成分分析。
Method Methanol and mixed solvent of chloroform and ethyl acetate extracts from Cordyceps formosana were analyzed with HPLC-DAD-HRMS.
方法水中的毒死蜱经二氯甲烷萃取后，用火焰光度检测气相色谱法测定，以保留时间定性，外标法定量。
Methods Chlorpyrifos was determined by GC-FPD after extraction by dichloromethane. Qualitative analysis was done by retention time and quantitative analysis by external standard curve.
目的：建立一种气相色谱法同时测定原料药头孢唑林钠中有机溶剂丙酮，二氯甲烷、乙醇残留量的方法。
Objective: Using the headspace Gas - chromatography methods to measure the assay of residual solvent (acetone, ethylene chloride and ethanol) in Cefazolin sodium.
样本用丙酮提取，加二氯甲烷萃取，通过中性氧化铝和活性炭混合柱层析净化，然后上气相色谱用NPD检测。
The procedure was described, including extraction by acetone and dichloromethane, cleaning up by passing through a column made up of neutral alumina and active carbon, determination by GC with NPD.
在二氯甲烷溶液中，一氧化氮导致2,3 -环氧酮发生顺式开环反应，生成的顺式羟基硝酸酯化合物为主要产物。
Ring opening reaction of 2, 3-epoxy ketones with nitric oxide in dichloromethane occurred in a syn-selective fashion, producing syn-2-hydroxy nitrates as main products.
一种清除口香糖残渣的清除剂由二硫化碳、二氯甲烷、乙酸乙酯、司班-80、环己酮及十二烷基苯磺酸钠及水组成。
The scavenging agent for scavenging the chewing gum residual consists of carbon disulfide, methylene dichloride, ethyl acetate, span-80, cyclohexanone, sodium dodecyl benzene sulfonate and water.
一种清除口香糖残渣的清除剂由二硫化碳、二氯甲烷、乙酸乙酯、司班-80、环己酮及十二烷基苯磺酸钠及水组成。
The scavenging agent for scavenging the chewing gum residual consists of carbon disulfide, methylene dichloride, ethyl acetate, span-80, cyclohexanone, sodium dodecyl benzene sulfonate and water.
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