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52661-U

Supelco

Discovery® DSC-SAX SPE Tube

bed wt. 50 mg, volume 1 mL, pk of 108

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About This Item

UNSPSC Code:
41115712
NACRES:
NB.21

material

polypropylene tube

Quality Level

composition

bed wt., 50 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

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

Retention Mechanism: Anion-exchange
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

Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

>464.0 °F

Flash Point(C)

> 240 °C


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