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What’s the difference between TSKgel SW/SWxl and PW/PWxl SEC columns?

April 26, 2017columns difference pw pwxl sec SW swxl tskgel

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What’s the difference between TSKgel SW/SWxl and PW/PWxl SEC columns?

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The “S” in TSKgel SW and SWxl columns stand for silica so these columns are created using porous silica. The “P” in TSKgel PW and PWxl columns refer to a polymeric support of porous methacrylate. The subscripted XL is used to denote smaller particle, higher efficiency columns. However, the pore size is the same for a given type of column, e.g. TSKgel G2000SW and G2000SWxl have the same fractionation range.