21568-U
Supelite DAX-8
jar of 5000 g
Sinonimo/i:
XAD-8
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About This Item
Codice UNSPSC:
23151817
NACRES:
SB.52
Prodotti consigliati
Forma fisica
solid
Confezionamento
jar of 5000 g
tecniche
HPLC: suitable
LPLC: suitable
ion chromatography: suitable
Area superficiale
140 m2/g
Matrice
acrylic ester
Gruppo funzionale matrice
polymer
Dimensione particelle
40-60 mesh
Dimensione pori
~0.79 mL/g pore volume
225 Å mean pore size
Densità
1.09 g/mL at 25 °C (true wet)(lit.)
1.23 g/mL at 25 °C (skeletal)(lit.)
Tecnica di separazione
reversed phase
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Descrizione generale
Supelite DAX-8 is a nonfunctionalised resin with strong hydrophobic organic matter endorsed to humic and fulvic acids. It is also referred as polymethylmethacrylate resin.
Applicazioni
Supelite DAX-8 was used as an absorbent in:
- HPLC-SEC fractionation system
- column chromatography
- extraction procedure and these extracts were analysed using Cary Eclipse fluorescence spectrophotometer
Adsorbent resin with moderate polarity for compounds up to 150,000 MW. Most commonly used for adsorption of fulvic and humic acids, treatment of paper pulp mill waste, and removal of alcohols, surfactants, and colorants from samples.
Nota sulla preparazione
DAX-8 is a salt imbibed resin, which requires some preparation prior to use. In the protocol below, you may use methanol in place of ethanol.
- First, rinse the adsorbent resin with 2-3 bed volumes (BV) of distilled water.
- Soak overnight in 2 BV of 95% ethanol.
- After soaking, the resin is introduced into the column and rinsed with an additional 2 BV of 95% ethanol.
- Rinse with 2 BV of distilled water to displace the ethanol, followed by 1 BV of 4% (w/v) sodium hydroxide, 2 BV of distilled water, 1 BV 4% (v/v) hydrochloric acid, and finally by distilled water until the pH of the eluent becomes neutral.
Note legali
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 3
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
Dispositivi di protezione individuale
Eyeshields, Gloves, type N95 (US)
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