Because of such shortcomings of melamine series water reducer as weak slump retentively, a slump retaining type melamine......

A novel capacitive sensor for pazufloxacin mesilate (pazufloxacin) determination was developed by electropolymerizing p-......

酸性光亮镀铜中常用２－硫基苯胼咪唑（简称Ｍ）作主光亮剂，本文通过Ｍ与亚硝酸反应生成相应的Ｓ－亚硝基化合物，除去过量的亚硝酸后，再让Ｓ－亚硝基化合物......

<正> 锰是生物所必需的一种痕量元素,它参与人体中精氨酸酶、丙酮酸化酶、RNA多聚酶的反应,促进人体发育,并具有抗癌作用。海水中......