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57228-U

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Discovery® DSC-WCX SPE Bulk Packing

pkg of 100 g

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About This Item

UNSPSC Code:
41115712
NACRES:
NB.21

packaging

pkg of 100 g

Quality Level

100

technique(s)

solid phase extraction (SPE): suitable

matrix active group

carboxypropyl bonding

application(s)

food and beverages

separation technique

ion exchange

Related Categories

General description

Retention Mechanism: Cation exchange
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
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Legal Information

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

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H317,H318

Hazard Classifications

Eye Dam. 1 - Skin Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
161925
SP137994
138287
136100
134199

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Articles

Solid Phase Extraction: Ion Exchange Methodology

SPE retention mechanism in this case is based on the electrostatic attraction of charged functional groups of the analyte(s) to oppositely charged functional groups on the sorbent.

Protocols

Solid Phase Extraction: Normal Phase Methodology

Normal-phase SPE separates analytes based on polar interaction with sorbents in diverse sample matrices.

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