Bestdex LH-20 Dextran Based Resins-SEC Resins丨Bestchrom

Bestdex LH-20

Product Characteristics

SEC resin, achieves effective separation of target molecules and impurities using molecular weight difference
Dextran-made beads
Hydrophilicity and lipophilicity, can use organic solvents as its mobile phase, suitable for the purification of effective compositions in traditional Chinese medicine ,as well as the polishing of antibiotics and synthetic chemical medicines.

Bestdex G-25

Bestdex LH-20

Description

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1. Introduction

Bestdex LH-20 is modified with hydroxypropyl on the basis of dextran gel Bestdex G-25.The introduction of hydroxypropyl makes the resin both hydrophilic and lipophilic. Organic solvents can be used as mobile phase. It is suitable for separation and purification of active ingredients in traditional Chinese medicine as well as fine purification of antibiotics and chemical drugs. The resin combines the characteristics of gel filtration, distribution chromatography, and adsorption chromatography to separate molecules with very similar structures.

2. Technical Characteristics

Appearance	White to off white spherical powder
Matrix	Dextran gel
Particle size(dry)	30~120μm
Average particle size(dry)	75μm
Average particle size(wet)	Large difference in different solutions
Exclusion limit	4~5KD
Max. Linear flow velocity	700cm/h
Max. Pressure	0.3MPa
Chemical stability	Stable in water and most organic solvents. It's unstable below pH2, and it's also unstable to strong oxidants.
pH Stability	2~13
Working temperature	2~40℃
Recommended Linear flow velocity	60cm/h