Seplife G25 SF Dextran Size-Exclusion Medium, 20-50 µm (CAT#: STEM-BC-3182-ZJF)

This dextran chromatography medium is designed for high-resolution desalting and small-molecule fractionation. It uses epichlorohydrin-crosslinked dextran with a three-dimensional porous structure. Separation occurs according to molecular access to the internal pores. Molecules larger than the pore structure pass between the particles and elute first. Intermediate molecules enter part of the pore network and elute after the excluded fraction. Small molecules penetrate more deeply into the gel and elute last. The superfine particle range supports improved chromatographic resolution. The stated fractionation range is 1000-5000 Da.

Model: Seplife G25 SF
Appearance: White spherical particles, odorless and tasteless
Dry particle size: 20-50 µm
Wet particle size: 40-70 µm
Swelling volume: 4-6 mL/g dry powder
Pressure resistance: 0.24 MPa
Maximum flow rate: 480 cm/h
pH stability: 2-13
Fractionation range: 1000-5000 Da
Chemical compatibility: 6 M guanidine hydrochloride, 8 M urea, 24% ethanol, 0.2 M sodium hydroxide, 0.2 M hydrochloric acid, 1 M acetic acid, 1% SDS, 30% isopropanol, and 30% acetonitrile

Superfine particle distribution
High-resolution desalting
1000-5000 Da range
Up to 480 cm/h flow
Broad pH stability
Extensive solvent compatibility
Stable dextran network
Suitable for peptides

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