HPLC columns, Cogent UDA™
Product Details & Documents
These carboxylic acid HPLC columns have a silica hydride surface similar to other TYPE-C™ Silica phases but the uniqueness of Cogent UDA™ is that they can exhibit weak cation exchange properties in addition to RP and ANP retention; a mixed mode is possible with some mobile phases conditions.
- Weak cation
- Mixed mode
A terminal carboxylic acid group contributes some additional selectivity in this column and when the mobile phase is above pH 5,9, the acid group becomes 90% negatively charged and at pH 6,9 is 99% charged and may act as a cation exchanger. Below pH 4,9, the group does not have significant ion exchange properties.
Specifications
- Formato della colonna:Analitica
- Ø int.:1,00 mm
- Dimensioni particelle:4 µm
- Dimensioni pori:100 Å
- Lunghezza:150 mm
- Seq:20
- Colonna:Acciaio inossidabile
- Fase:Undecanoic acid (WCX)
- Cat. No.:554-6246
- Area superficiale:390 m²/g
- Carico di carbonio:14 - 15%
- Limite di temperatura:80 °C
- Range di pH:2 - 8
- Con endcapping:No
Les recommandations seront personnalisées selon vos préférences d’achat uniquement si vous avez activé "Améliorer mon expérience d’achat" dans la page "Informations personnelles".
Sinon, vous recevrez des recommandations génériques.
Catalogue #: 83639.320
Supplier: VWR Chemicals
Catalogue #: 20864.320
Supplier: VWR Chemicals
Catalogue #: 83640.320
Supplier: VWR Chemicals
Catalogue #: 1.00030.2500
Supplier: Merck
Catalogue #: 31770.294
Supplier: VWR Chemicals
Catalogue #: 83645.320
Supplier: VWR Chemicals
Catalogue #: 1.09439.1000
Supplier: Merck