52739-U
Discovery® DSC-WCX SPE Tube
bed wt. 100 mg, volume 1 mL, pk of 108
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About This Item
NACRES:
NB.21
UNSPSC Code:
41115712
eCl@ss:
32035701
material
polypropylene tube
Quality Segment
composition
bed wt., 100 mg
packaging
pk of 108
technique(s)
solid phase extraction (SPE): suitable
surface area
480 m2/g
volume
1 mL
matrix
Silica gel base material (irregularly shaped, acid washed)
matrix active group
carboxypropyl bonding
particle size
50 μm
pore size
0.9 mL/g pore volume, 70 Å pore diameter
capacity
0.15 meq/g total capacity
application(s)
food and beverages
separation technique
ion exchange
General description
Retention Mechanism: Cation exchange
Sample Matrix Compatibility: Organic or aqueous solutions
Sample Matrix Compatibility: Organic or aqueous solutions
- A polymerically bonded, ethylenediamine triacetic acid phase with a pKa of 4.8
- Counter ion is Na+
- Ion exchange capacity is ∼ 0.15 meq/g
- Carries a negative charge at pH 6.8 or above
- A pH of 2.8 or below neutralizes this phase for easier elution of strong cationic analytes that are neutralized only at extreme basic conditions
- Typically used when dealing with very strong cationic (high pKa) compounds that may be irreversibly retained on strong cation exchangers
Legal Information
Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany
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Storage Class
13 - Non Combustible Solids
Hazard Codes
Precautionary Statements
Hazard Classifications
Eye Dam. 1 - Skin Sens. 1
Signal Word
Danger
WGK
WGK 3
Flash Point (°F)
>464.0 °F
Flash Point (°C)
> 240 °C
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