Обзор

Malvern offers a wide range of analytical GPC/SEC columns for a wide range of applications and molecular weights. These include common column types for synthetic polymers in organic solvents as well as water soluble polymers (e.g. polysaccharides and DNA). Silica-based columns for separation of proteins are also available. Finally, Malvern offers a range of specialty columns for running in polar solvents or with cationic polymers.

  • Styrene-divinyl benzene (SVB) columns for organic soluble synthetic polymers
  • SVB columns shipped in THF, DMF, Chloroform and HFIP
  • Methacrylate columns for water soluble polymers and polysaccharides
  • Silica columns for separations of proteins
  • Columns for polymers soluble in polar solvents
  • Columns for strongly cationic samples such as chitosan
  • Single and mixed pore sizes to maximize molecular weight resolution or linearity
  • Guard columns for all applications

Принцип работы

Polymer molecules pass through the GPC/SEC column dissolved in the mobile phase. As they move along the column, the sample molecules enter and leave pores in the column matrix. Larger molecules are excluded from more pores and thus travel more slowly and elute sooner. Smaller molecules enter more pores and the progress is retarded so they elute later.

Molecules are thus separated by their hydrodynamic size and measured by one or more detectors when they elute from the column.

Характеристики

Styrene-divinyl benzene (T-, D-, C-, HFIP-series)

Тип колонок:
Styrene-divinyl benzene (T-, D-, C-, HFIP-series)
Область применения:
Synthetic polymers
Растворители для транспортировки:
THF, DMF, Chloroform, HFIP
Диапазон молекулярной массы:
All molecular weights for GPC/SEC applications
Габариты:
300 mm x 8.0 mm

Modified styrene-divinyl benzene (I-series)

Тип колонок:
Modified styrene-divinyl benzene (I-series)
Область применения:
Synthetic polymers in polar solvents
Растворители для транспортировки:
DCM
Диапазон молекулярной массы:
All molecular weights for GPC/SEC applications
Габариты:
300 mm x 7.8 mm

Polymethyl-methacrylate (A-series)

Тип колонок:
Polymethyl-methacrylate (A-series)
Область применения:
Water soluble polymers
Растворители для транспортировки:
Water
Диапазон молекулярной массы:
All molecular weights for GPC/SEC applications
Габариты:
300 mm x 8.0 mm

Functionalized-divinyl benzene (Cation-series)

Тип колонок:
Functionalized-divinyl benzene (Cation-series)
Область применения:
Water or Organic soluble Cationic polymers
Растворители для транспортировки:
THF
Диапазон молекулярной массы:
All molecular weights for GPC/SEC applications
Габариты:
300 mm x 7.8 mm

Silica (P-series)

Тип колонок:
Silica (P-series)
Область применения:
Proteins
Растворители для транспортировки:
Water
Диапазон молекулярной массы:
All molecular weights for GPC/SEC applications
Габариты:
300 mm x 8.0 mm
Диапазон pH:
3.0–7.5 нм