52667-U
Discovery® DSC-SAX SPE Tube
bed wt. 2 g, volume 12 mL, pk of 20
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About This Item
material
polypropylene tube
composition
bed wt., 2 g
packaging
pk of 20
technique(s)
solid phase extraction (SPE): suitable
surface area
480 m2/g
volume
12 mL
matrix
Silica gel base material (irregularly shaped, acid washed)
matrix active group
ammonium ion, quaternary bonding, polymerically bonded, chloride counter-ion
particle size
50 μm
pore size
0.9 mL/g pore volume, 70 Å pore diameter
capacity
0.14 meq/g total capacity
application(s)
food and beverages
separation technique
ion exchange
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General description
Sample Matrix Compatibility: Organic or aqueous solutions
- A polymerically bonded quarternary amine that remains positively charged at all pH levels
- Counter ion is Cl-
- Ion exchange capacity is ∼ 0.14 meq/g
- Commonly used when extracting weaker anions (e.g., carboxylic acids) that may not bind strongly enough to weaker anion-exchangers
- Selectivity can be modified by changing the counter ion with the appropriate buffer during conditioning
Legal Information
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
>464.0 °F
flash_point_c
> 240 °C
Regulatory Information
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