| 词汇 | isopropanol |
| 释义 | isopropanol noun[ U ] uk /ˌaɪ.səʊˈprəʊ.pə.nɒl/ us /ˌaɪ.soʊˈproʊ.pə.nɑːl/(alsoisopropyl alcohol) a type of alcohol used in industry and in products used at home, for example as a solvent(= substance that dissolves paint, glue, etc.)异丙基 Chemistry: types of chemical acid salt aerogel albumin alkali metal alkaline alkaloid antioxidant carbohydrate homologous series inorganic ketone lectin melamine methyl orange monosaccharide mothball propellant saline soluble sulphide Examples of isopropanolisopropanol Then 450 ml of isopropanol was added and mixed by vortexing. Although the slides were cleaned weekly with isopropanol (70%), microorganisms could be detected on the surfaces shortly after the cleaning procedure. Three-fifths volume of isopropanol was added to the supernatant (termed sup3) and mixed thoroughly. The waxy layer of the vitelline membrane was then removed by sequential treatment with isopropanol and hexane. In this paper the various phenomena are studied in a series of laboratory experiments in which ice is frozen from aqueous solutions of isopropanol. The stain was prepared as a saturated solution in pure isopropanol. For tomato seed extracts, a more precise fractionation using different concentrations of isopropanol was necessary. The parameter values used to calculate the evolution of the isopropanol experiments. Immediately before use this was diluted with water to 60% isopropanol solution and filtered. However, the concentrations of isopropanol required for fractionation of nucleic acids varied depending on the plant materials. Samples were extracted with an organic solvent (isopropanol/hexane/water mixture for soils, hexane for waters), the organic phase concentrated and (for soil extracts) semi-purified by liquid chromatography. This was done by a sequential incubation of 2 5 % isopropanol/10% acetic acid (v/v), 10% isopropanol/10% acetic acid (v/v) and 10% acetic acid (v/v). To test the model we performed a number of experiments with a particular solution of water and isopropanol, which offered few complications and for which reliablc thermodynamic data were available. The neurotoxic potential of both acetone and isopropanol, the metabolic precursor of acetone, have been extensively studied. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The hydrogen-donor (transfer agent) is typically isopropanol, which converts to acetone upon donation of hydrogen. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of isopropanol These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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