为了快速检测鲜乳、乳粉、酱油、木耳及干果类和鱼粉、骨粉等食品和饲料中的尿素 ,为食品卫生监督、监测 ,鲜乳收购及饲料经营部门提供一种快速、准确、灵敏、使用方便的检测手段 ,我们根据对二甲氨基苯甲醛与尿素反应产生黄色化合物的原理 ,制成尿素试纸 ,能简单快速地检测鲜? In order to quickly detect urea in foods and feeds such as fresh milk, milk powder, soy sauce, fungus and dried fruits and fish meal, bone meal and the like, it provides a fast, accurate, sensitive and reliable method for food hygiene supervision, monitoring, Use of convenient detection means, we based on the reaction of dimethylamino benzaldehyde and urea yellow compound principle, made of urea test paper, can be simple and quick detection of fresh?