词汇 | dichloromethane |
释义 | BETA Examples of dichloromethanedichloromethane isn’t in the Cambridge Dictionary yet. You can help! The active compound was recovered using dichloromethane, yielding the target compound (99% purity), which was characterized using gas chromatography -mass spectrometry, infrared spectroscopy, and nuclear magnetic resonance spectroscopy. The marketing and use of dichloromethane by professionals will be subject to a general ban. From Europarl Parallel Corpus - English Employers and self-employed people should preferably replace dichloromethane with other substances or procedures, taking into account the relevant workplace safety legislation. From Europarl Parallel Corpus - English There is no effective way to ensure the safe use of dichloromethanes for the public. From Europarl Parallel Corpus - English Water, carbon dioxide, and dichloromethane are used to decaffeinate coffee. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Each day target 1 (control) was treated with 200 ml of solvent (dichloromethane) and target 2 (test) with 200 ml of sebum solution. Organic components were then eluted quantitatively with an organic solvent such as dichloromethane. These fractions were extracted with dichloromethane, evaporated to dryness and taken up in water for the bioassay. These results indicated the successful removal of hydrocarbonand dichloromethane-contaminated soils. The aqueous layer was acidified, extracted twice with 100 ml dichloromethane and the extract dried to give 200 ml of the phenolic fraction. The forceps were cleaned in dichloromethane and the solvent allowed to evaporate prior to usage. The macromolecular material was finally obtained by washing with methanol and dichloromethane. The selected method was based on liquid-liquid microextraction with dichloromethane and the use of an internal standard to correct for matrix effects. In the 40 ml vial containing the aqueous phase, 1 ml of dichloromethane was added and the procedure was repeated. After waiting for 5 min, the phases had separated; the dichloromethane phase was recovered and transferred to a 4 ml vial. Neutral lipids and glycolipids were eluted successively, with 4 ml each of dichloromethane and acetone. Free organic matter is removed with organic solvents, most commonly dichloromethane and methanol mixtures (93 : 7). Development and validation of a new method based on gas-chromatographic-flame ionization detection analysis of dichloromethane microextracts. Sebum collected in dichloromethane, and sebum collected in methanol were used in two successive experiments. |
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