Silica gel with quaternary ammonium modification, strongly basic anion exchanger (SAX)
Column type
SPE column
Hardware
Polypropylene (PP) columns with polyethylene (PE) filter elements
Column shape
Open tubular syringe-shaped column with Luer tip outlet
Column volume
3 mL
Filling quantity
500 mg
Column volume/adsorbent weight
3 mL/500 mg
Selling unit
50 columns, 250 columns
Recommended application(s)
Caffeine, Organic acids, Saccharin
Particle type
Fully porous particles (FPP)
Particle size
45 µm
Particle shape
Irregular
Specific surface according to BET
500 m²/g
pH stability
2.0–8.0
Filter element material
Polyethylene (PE)
Storage temperature
RT
DESCRIPTION
Silica gel modified with quaternary amine, strongly basic anion exchanger (SAX). Capacity ~ 0.3 meq/g, not suited for very strong anions such as sulfonic acids, because these are difficult to elute.