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- SPE columns, CHROMABOND HR-XCW, 45 µm, 3 mL/60 mg
State-of-the-art spherical polymer for highest demands in solid phase extraction. PS/DVB copolymer with carboxylic acid modification for mixed-mode SPE with weak cation exchange and reversed-phase properties (WCX). Exchange capacity > 0.7 meq/g, pKa ~ 5 and RP capacity 350 mg/g (caffeine in water). High-purity material with ideal flow properties and highest reproducibility. Allows highest reproducibility with extremely low blind values due to an optimized production process. Outstanding recovery rates especially for the enrichment of basic (strong bases with pKa > 10) analytes.
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Particle type
Fully porous particles (FPP)
Particle shape
Spherical
Endcapped
No
Brand
CHROMABOND
Particle size
45 µm
Filter element material
Polyethylene (PE)
Recommended application(s)
Basic compounds
Carbon content
Not available or proprietary
pH stability
1.0–14.0
Column shape
Open tubular syringe-shaped column with Luer tip outlet
Column volume
3 mL
Hardware
Polypropylene (PP) columns with polyethylene (PE) filter elements
Column type
SPE column
Selling unit
30 columns
Scope of delivery
30x (6x5 in aluminum bags each) SPE columns, certificate of analysis
Base material
PS/DVB copolymer
Method
Solid phase extraction (SPE)
Mode
Mixed mode (RP and Ion exchange (IEX))
Specific surface according to BET
850 m²/g
Recommended application(s)
Quaternary amines
Recommended application(s)
Strong bases with pKa > 10
Phase
HR-XCW
Surface chemistry
Hydrophobic spherical polystyrene-divinylbenzene copolymer (PS/DVB) with carboxylic acid modification, weak mixed mode cation exchanger (WCX)
Filling quantity
60 mg
Column volume/adsorbent weight
3 mL/60 mg
Recommended application(s)
Basic active ingredients from strongly matrix-contaminated samples
Pore size
50–60 Å
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