Shodex® Columns are high-efficiency columms for GPC analysis. Featuring a very reproducible styrene and divinylbenzyne technology, these columns have more than twenty years of history and have been used by customers all over the world. ◾K-800 Series - Ultra-high efficiency columns designed for high resolution performance. Available in THF, DMF or chloroform. ◾HFIP-800 Series - Columns with the same high efficiency as the K series columns, but are available in HFIP.