Open and packed gas chromatography columns; includes retention gap columns for focusing liquid samples and guard columns to protect the analytical column from contamination.
CHIRALDEX™ B-DA requires that analytes possess a minimum of two ring structures, one of which is unsaturated (aromatic) alpha, beta to the stereogenic center. Examples include fluoxetine, methylphenidate and chloropheniramine.
Porous-layer open-tubular (PLOT) columns are a powerful tool used in gas chromatography for analysis of fixed gases, light hydrocarbons and volatile solvents. They are mostly preferred over traditional columns.