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52637-U

Supelco

Discovery® DSC-NH2 SPE Tube

bed wt. 500 mg, volume 3 mL, pk of 54

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NACRES:
NB.21

material

PE frit (20 μm)
polypropylene

product line

Discovery®

feature

endcapped

composition

bed wt., 500 mg

packaging

pk of 54

technique(s)

solid phase extraction (SPE): suitable

surface area

480 m2/g

volume

3 mL

matrix

silica gel base material (irregularly shaped, acid washed)

matrix active group

amino phase

particle size

50 μm

pore size

70 Å pore size

pKa 

9.8

capacity

~0.43 meq/g capacity

application(s)

food and beverages

separation technique

ion exchange
normal phase

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This Item
52636-U52640-U52641-U
feature

endcapped

feature

endcapped

feature

endcapped

feature

endcapped

composition

bed wt., 500 mg

composition

bed wt., 100 mg

composition

bed wt., 1 g

composition

bed wt., 2 g

packaging

pk of 54

packaging

pk of 108

packaging

pk of 30

packaging

pk of 20

surface area

480 m2/g

surface area

480 m2/g

surface area

480 m2/g

surface area

480 m2/g

volume

3 mL

volume

1 mL

volume

6 mL

volume

12 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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-
25G
Pack Size/Quantity

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1000309185

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Protocols

Solid Phase Extraction: Normal Phase Methodology

Retention occurs through polar interaction between the sorbent and analytes. Typical sample matrices that can be employed in normal-phase SPE include hydrocarbon or fatty oils diluted in a solvent like hexane, isooctane, chlorinated solvent, THF, diethyl ether, or ethyl acetate.

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