Description_x000D_ General description_x000D_ Grease-free design eliminates contamination and frozen joints. Consists of column and flow controller. Order solvent reservoir separately. See the Air-Sensitive section for a description of the threaded joint._x000D_ Application_x000D_ Flash chromatography is useful for rapid, preparative separations with moderate resolutions. As first described in J. Org. Chem., 43, 2923 (1978), it is commonly performed with silica gel although the use of reversed phase packings has become popular in recent years._x000D_ Linkage_x000D_ See the Threaded Ground Glass Tutorial to see how threaded joints work.