J.T.Baker COOH羟酸SPE固相萃取柱 7211-03 500mg/3mL 50支/盒SPE columns, J.T.Baker® , BAKERBOND spe™ Carboxylic AcidBAKERBOND spe™ columns are disposable PP columns pre-packed with high capacity sorbents contained between two 20 μm PE frits. Silica basedExtraction of compounds from sample solution volumes ranging from a few hundred μl up to 1 LProcessing by vacuum, positive pressure or centrifugationGeneral applications: Ionic, basic analytes.These SPE columns can be used in weak cation exchange mode.