英语词汇“diazomethane”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

diazomethane

/dʌɪˌazəʊˈmiːθeɪn

/ /dʌɪˌeɪzəʊˈmiːθeɪn/

noun [mass noun] Chemistry

A poisonous, reactive yellow gas used as a methylating agent in chemical synthesis.

Samples were evaporated to dryness under vacuum, redissolved in 20 mm of methanol, then diazomethane added to methylate ABA....

The sap samples were thawed and an internal standard of [H 6] ABA was added before they were dried, methylated with ethereal diazomethane, dried and redissolved in methanol for analysis by gc/ms.
Lipids were extracted according to the method of Bligh and Dyer, followed by methylation with ethereal diazomethane.

Late 19th century: from diazo- (indicating the presence of two nitrogen atoms) + methane.

单词	diazomethane
释义	diazomethane /dʌɪˌazəʊˈmiːθeɪn / /dʌɪˌeɪzəʊˈmiːθeɪn/ noun [mass noun] Chemistry A poisonous, reactive yellow gas used as a methylating agent in chemical synthesis. Chemical formula: CH₂N₂. Samples were evaporated to dryness under vacuum, redissolved in 20 mm of methanol, then diazomethane added to methylate ABA.... The sap samples were thawed and an internal standard of [H 6] ABA was added before they were dried, methylated with ethereal diazomethane, dried and redissolved in methanol for analysis by gc/ms. Lipids were extracted according to the method of Bligh and Dyer, followed by methylation with ethereal diazomethane. Origin Late 19th century: from diazo- (indicating the presence of two nitrogen atoms) + methane.
随便看	hyponymy hypoparathyroid hypoparathyroidism hypophyseal hypophysis hypopigmentation hypopituitarism hypopituitary hypopnea hyporheic hyposensitivity hyposensitization hyposensitize hypospadias hyposplenism hypospray hypostasis hypostasise hypostasize hypostatic hypostatical hypostatic union hypostatize hyposthenia hypostyle