方法：以氨基乙醛缩甲醇制备的N （2 ，2二甲氧基乙基）胍硫酸盐经盐酸催化环合制得2 氨基咪唑硫酸盐。
METHODS:N (2,2 dimethoxylethyl)guanidine sulfate from aminoacetaldehyde dimethyl acetal was treated with concentrated HCl to get 2 aminoimidazole sulfate.
认为该类抗生素结构上共有的伯、仲氨基与乙醛的衍生化反应产物，在一定电位下易吸附于电极表面。
The condensation products of the amino groups in these antibiotics with acetaldehyde can easily be adsorbed on the electrode surface under a specific potential.
乳酸菌的主要风味代谢物质包括丁二酮，乙醛以及各种氨基酸。
The major flavor substances Lactic acid bacteria produced include the buttermilk aroma butanedione, the yoghurt flavor acetaldehyde and the amino acid.
用氨基化合物，乙醛酸和双氰胺树脂等分别处理浸酸裸皮的软化裸皮后进行少铬鞣制。
The pickled pelt or bated hides were pretreated separately with glyoxylic acid, amino compounds and dicyandiamide resin etc. , then tanned with less chrome.
用氨基化合物，乙醛酸和双氰胺树脂等分别处理浸酸裸皮的软化裸皮后进行少铬鞣制。
The pickled pelt or bated hides were pretreated separately with glyoxylic acid, amino compounds and dicyandiamide resin etc. , then tanned with less chrome.
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