21567-U
Supelite DAX-8
jar of 1000 g
Synonym(s):
XAD-8
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About This Item
NACRES:
SB.52
UNSPSC Code:
23151817
form
solid
packaging
jar of 1000 g
technique(s)
HPLC: suitable, LPLC: suitable, ion chromatography: suitable
surface area
140 m2/g
matrix
acrylic ester
matrix active group
polymer
particle size
40-60 mesh
pore size
~0.79 mL/g pore volume, 225 Å mean pore size
density
1.09 g/mL at 25 °C (true wet)(lit.), 1.23 g/mL at 25 °C (skeletal)(lit.)
separation technique
reversed phase
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General description
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.
Application
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.
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
Preparation Note
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.
Legal Information
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Richard T Lamar et al.
Journal of AOAC International, 97(3), 721-730 (2014-07-24)
Increased use of humic substances in agriculture has generated intense interest among producers, consumers, and regulators for an accurate and reliable method to quantify humic acid (HA) and fulvic acid (FA) in raw ores and products. Here we present a
The fouling of microfiltration membranes by NOM after coagulation treatment
Carroll, T., et al.
Water Research, 34, 2861-2868 (2000)
Sorption of aquatic humic matter by DAX-8 and XAD-8 resins: comparative study using pyrolysis gas chromatography
Peuravuori, Juhani, Tero Lehtonen, and Kalevi Pihlaja.
Analytica Chimica Acta, 471, 219-226 (2002)
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