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52638-U

Supelco

Discovery® DSC-NH2 SPE Tube

bed wt. 500 mg, volume 6 mL, pk of 30

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About This Item

UNSPSC Code:
41115712
NACRES:
NB.21

Pricing and availability is not currently available.

material

PE frit (20 μm)
polypropylene

Quality Level

feature

endcapped

composition

bed wt., 500 mg

packaging

pk of 30

technique(s)

solid phase extraction (SPE): suitable

surface area

480 m2/g

volume

6 mL

matrix

silica gel base material (irregularly shaped, acid washed)

matrix active group

amino phase

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This Item
52636-U52637-U52640-U
matrix

silica gel base material (irregularly shaped, acid washed)

matrix

silica gel base material (irregularly shaped, acid washed)

matrix

silica gel base material (irregularly shaped, acid washed)

matrix

silica gel base material (irregularly shaped, acid washed)

matrix active group

amino phase

matrix active group

amino phase

matrix active group

amino phase

matrix active group

amino phase

particle size

50 μm

particle size

50 μm

particle size

50 μm

particle size

50 μm

pore size

70 Å pore size

pore size

70 Å pore size

pore size

70 Å pore size

pore size

70 Å pore size

volume

6 mL

volume

1 mL

volume

3 mL

volume

6 mL

General description

Retention Mechanism: Normal phase or Anion-exchange
Sample Matrix Compatibility: Organic or aqueous solutions

  • Polymerically bonded, aminopropyl phase that is very polar in nature (hydrogen bonding) allowing for both normal phase and ion exchange applications
  • A weak anion exchanger with a pKa of 9.8. At pH 7.8 or below, the functional groups are positively charged
  • Ion exchange capacity is ∼ 0.43 meq/g.
  • Allows the rapid release of very strong anions such as sulfonic acids that may be retained irreversibly by strong anion exchangers
  • Can be used in some reversed-phase applications (due to ethyl spacer); however, it is predominately used as an ion-exchange or normal phase sorbent due to its polar nature

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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Articles

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

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

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

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

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

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