葡聚糖凝胶LH20，英文名称：Sephadex LH-20，又称：交联葡聚糖凝胶LH-20；羟丙基葡聚糖凝胶LH-20；羟丙基葡聚糖凝胶，CAS： 9041-37-6。
Matrix: Hydroxypropylated, cross-linked dextran
Partical Size Dry: 18 µm-111 µm
Particle Size in Methanol Min. : 27 µm
Particle Size in Methanol Max. : 163 µm
Sample Loading Volume: Determined by desired degree of resolution [Adsorption Mode], ~2% total bed volume [Molecular Sizing], ~1% total bed volume [Partition Mode]
pH Stability Working Range: 2-13
pH Stability Cleaning-in-Place (CIP): 2-13
Pressure/Flow Specification: 25-45 cm/h, pressure drop cm H2O/bed height=2, beh height 30 cm, 2.6 cm i.d.
Flow Velocity: < 60 cm/hour
Fractionation [Mr] Globular Proteins: 4 × 103 (Exclusion limit will depend on the solvent) – 5 × 103 (Exclusion limit will depend on the solvent)
Exclusion Limit Peptides: 4 x 103
Exclusion Limit Small Organics : 5 x 103
Storage Conditions: 4 to 30°C
Chemical Stability: Stable in most aqueous and organic eluent systems.
Avoid Using: Not stable below pH 2 nor to strong oxidising agents
Autoclavable: 20 min at 121°C