Size-exclusion columns are usually classified into the following types: columns for aqueous solvent systems and columns used with an organic solvent systems. However, multiple problems have occurred with each of these types of columns when used to study polar polymer molecules. With the use of TSK-GEL Alpha Series columns, a variety of solvents can be chosen ranging from aqueous solutions to organic solvents, making it possible to set the conditions for investigation based on the solubility of the chemical and the molecular weight standard. As a result, this series of columns can be used when analyzing polar polymer samples that have been so cumbersome to characterize with traditional SEC columns in the past.

In general, analysis by conventional GPC is more time consuming than separation by reversed phase or normal phase HPLC. The TSK-GEL Hxl type columns provide a significant improvement in this regard, by reducing analysis time over more conventional GPC column types. Using TSK-GEL Hxl type columns yields a number of major advantages, including reducing analysis time by half, increasing analysis performance, and decreased solvent consumption and disposal costs.

Question: How do you assemble a guard column kit? Answer