1·Several kinds of novel extraction solvents were presented which mainly included N - formylmorpholine, dimethyl formamide, etc.
介绍了石油化工领域采用的几种优良抽提剂，包括N-甲酰吗啉、 二甲基甲酰胺等。
2·Using potassium silicate as silicon source, formamide as catalyst, a series of silica xerogel monolithic columns with different consistencies were prepared.
以硅酸钾为硅源，甲酰胺为催化剂在毛细管内原位聚合形成干凝胶柱，制备了一系列致密度不同的整体柱。