| 词汇 | methanol |
| 释义 | methanol noun[ U ] uk /ˈmeθ.ə.nɒl/ us /ˈmeθ.ə.nɑːl/ a poisonous chemical substance that is the simplest type of alcohol甲醇 Chemicals, chemical compounds & gases acetic acid acrolein acrylamide activated charcoal adenine agglomerate cyanide ethyl alcohol glyphosate H2O HCFC HFC hyaluronic acid hydrochloric acid laughing gas limescale meths oxyacetylene prussic acid tartaric acid methanol | American Dictionarymethanol noun[ U ] us/ˈmeθ·əˌnɔl, -ˌnoʊl/ chemistry a poisonous chemical substance which is the most basic type of alcohol Examples of methanolmethanol Ten to twenty grains were selected from each sample, washed with methanol in an ultrasonic bath and rinsed with distilled water. A 54-ml mixture of methanol and chloroform (1:2 by volume), heated to boiling point, was used as the solvent. Alternatively, the sections were treated with 1% hydrogen peroxide in methanol for 30 minutes to inactivate endogenous peroxidases. Its photolysis was studied in n-hexane and methanol. The harvested eyes were placed in cold acetic acid/methanol solution overnight followed by paraffin embedding using standard procedures. A very small volume of fixative (methanol 3 : acetic acid 1) was poured into the hypotonic solution. A freshly prepared mixture of 3 volumes methanol: 1 volume acetic acid was slowly run onto the pellet and poured off; this was repeated twice. This includes, in particular, polar solvents like ammonia, hydrocyanic acid, and methanol, and possibly non-polar compounds such as methane and ethane. If cytoplasm remained, it was removed by spreading one drop of another fixative, a mixture of methanol and acetic acid (3:1). For this reason, only bacteria that had been dehydrated by freeze substitution through cold methanol are presented here. The plants were separated into their parts and macerated with different solvents (n-hexane, acetone, ethanol and methanol). Comparisons of freeze substitution using acetone, ethanol or methanol, showed similar morphological appearance. They transform simple substances such as acetate and methanol into methane. Immediately prior to measurement, the supernatant was evaporated under nitrogen and the tocopherol was redissolved in methanol. The cartridges were sequentially conditioned with methanol (5 ml) and distilled water (10 ml). See all examples of methanol 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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