Plaque de 96 puits Discovery DSC-NH2 SPE, poids du lit : 100 mg / puits, lot de 1

Code: 575615-u D2-231

Non disponible en dehors du Royaume-Uni et de l'Irlande

General description

Retention Mechanism: Normal phase or Anion-exchangeSample Matrix Compatibility: Organic or aqueous solutions Polymerical...


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Non disponible en dehors du Royaume-Uni et de l'Irlande

General description

Retention Mechanism: Normal phase or Anion-exchangeSample 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

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Discovery is a registered trademark of Sigma-Aldrich Co. LLC

application(s)food and beverages
capacity~0.43 meq/g by wetted bed volume
compositionbed wt., 100 mg/well
featureendcapped
materialPE frit (20 µm), polypropylene
matrix active groupamino phase
matrixsilica gel base material (irregulary shaped, acid washed)
packagingpk of 1
particle size50 µm
pKa 9.8
pore size70 Å pore size
Quality Level100
separation techniquenormal phase
surface area480 m2/g
technique(s)solid phase extraction (SPE): suitable
volume2 mL
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