Shodex SEC Calibration Standard kits

Shodex SEC Calibration Standard Kits

Shodex calibration standards for Size Exclusion Chromatography (SEC) play a crucial role in ensuring accurate molecular weight measurements.

These standards are available for both organic and aqueous phases.

The kits include pullulan (polysaccharide), polystyrene (PS), and polymethylmethacrylate (PMMA), allowing researchers to calibrate their SEC systems effectively.

Shodex is a reputable manufacturer that provides reliable and high-quality solutions for chromatography applications, making their calibration standards a valuable resource for scientists and analysts in the field.

מידע נוסף

Pullulan calibration standard

  • Kit STANDARD P-82 with 8 different MW
  • Water-soluble unbranched polysaccharide calibration kit for aqueous SEC
  • Pullulan is a linear polysaccharide composed of maltotriose units connected by α-1,6 bonds, offering stability without agglomeration, crystallization, or electrical charge.

Polystyrene (PS)

  • Available as three different kits for low, medium and high MW:
    STANDARD SL-105, SM-105, SH-75
  • Molecular weights ranging from 4 to 200,000.
  • Easily soluble in tetrahydrofuran (THF), chloroform, toluene, and o-dichlorobenzene (ODCB) and are used for organic solvent SEC (GPC).
  • The polystyrene is less branched, synthesized through anionic polymerization.

Polymethylmethacrylate (PMMA)

  • Kit STANDARD M-75 with 7 different MW
  • Suitable for use with hexafluoroisopropanol (HFIP) and dimethylformamide (DMF) solvents, as well as tetrahydrofuran (THF), toluene, methyl ethyl ketone, ethyl acetate, DMF, and DMAc
  • Designed for organic solvent SEC (GPC) and features a narrow molecular weight distribution range.

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