Packed Columns - Solid Supports for USP Methods

← Back to document page

Packed Columns - Solid Supports for USP Methods D ESCRI PT I O N Solid SUPPORT USP CODE. Siliceous earth Silcoport Chromosorb WHP S1A. Siliceous earth, treated as S1A and both acid-and base-washed Silcoport WBW S1AB. Crushed rebrick, calcined or burned with a clay binder above 900 C, acid- Chromosorb PAW DMDCS S1C. washed, may be silanized Untreated siliceous earth Chromosorb W NAW S1NS. Styrene-divinylbenzene copolymer with nominal surface area Chromosorb 101 S2. of less than 50m2/g an ave. pore diameter of - mm Styrene-divinylbenzene copolymer with nominal surface area of 500 to Hayesep Q Porapack Q S3. 600m2/g and ave. pore diameter of mm Styrene-divinylbenzene copolymer with aromatic -0 and -N groups having a Hayesep R Porapack R S4. nominal surface area of 400 to 600m2/g and ave. pore diameter of mm High molecular weight tetra uorethylene polymer, 40-60 mesh Chromosorb T S5.

86 These columns have been used for the last 50 years in all kinds of analyses for gas chromatography. "Packed colum use today is understandable due to the wide range

  Packed, Columns, Packed column