本文以DMDM乙内酰脲和咪唑烷基脲为例，简述了此类防腐剂的性质特点及检测化妆品中此类防腐剂含量的困难。
This paper use DMDM Hydantoin and Imidazolidinyl Urea as two examples, describe the characteristic of these preservatives, and the difficulties in determination of these preservatives in cosmetic.
方法注射链脲佐菌素建立大鼠糖尿病模型，观察鬼针草乙酸乙酯提取物对血糖值的影响。
Methods Diabetic rat models were produced by injection of streptozotocin. The impact of Bidens ethyl acetate extract on blood glucose level was observed.
制备并得到了三种基于二乙酯基甘脲的手性分子夹的晶体结构。
The X-ray crystal structures of three chiral molecular clips based on diethoxycarbonyl glycoluril were obtained.
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