This technique sometimes uses a porous monolithic rod or an "open tubular" tube, and it often uses silica gel or alumina as a packing material. Large molecules like proteins and polymers are often analyzed with the size-exclusion type of it. In forensics, this technique is performed on gases and followed with mass spec in (*) GC-MS. High pressures are applied to the mobile phase in a type of this abbreviated HPLC. In one family of this technique, the retention factor measures the ratio between the distance moved by the spot and the solvent. For 10 points, column, thin layer, and paper are all 
This technique sometimes uses a porous monolithic rod or an "open tubular" tube, and it often uses silica gel or alumina as a packing material. Large molecules like proteins and polymers are often analyzed with the size-exclusion type of it. In forensics, this technique is performed on gases and followed with mass spec in (*) GC-MS. High pressures are applied to the mobile phase in a type of this abbreviated HPLC. In one family of this technique, the retention factor measures the ratio between the distance moved by the spot and the solvent. For 10 points, column, thin layer, and paper are all types of what technique for separating mixtures?
This technique sometimes uses a porous monolithic rod or an "open tubular" tube, and it often uses silica gel or alumina as a packing material.