TSKgel Alpha-4000
The TSKgel Alpha-4000 column is packed with rigid, porous polymer beads which show minimal shrinkage or swelling in in polar organic solvents (methanol, acetonitrile, DMSO, isopropanol, THF, and HFIP). This column is stable in a wide variety of organic solvents at concentrations up to 100%.
The main application area for the TSKgel Alpha-4000 column is the analyses of polymers that are soluble in polar organic solvents up to 1 x 10^6 Da. Examples include cellulose derivatives, polyimide, and sodium dodecylsulfate (all in 10 mmol/L LiBr in DMF), cleansing gel in methanol, and degree of saponification of polyvinylalcohol in hexafluoroisopropanol (HFIP).
Calibration curves of TSKgel Alpha columns
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Column: TSKgel Alpha columns, 7.8 mm ID × 30 cm
Mobile phase: A. H2O
B. MeOH containing 10 mmol/L LiBr
C. DMF containing 10 mmol/L LiBr
Flow rate: 1.0 mL/min
Detection: RI
Temperature: A. 25 °C B. 25 °C C. 40 °C
Samples: A, B: polyethylene glycol (PEG) and polyethylene oxide (PEO) standards
C. polystyrene (PS) standards
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