21567-U

Supelco

Supelite DAX-8

jar of 1000 g

Sinônimo(s):
XAD-8
NACRES:
SB.52

Nível de qualidade

100

forma

solid

embalagem

jar of 1000 g

aplicação(ões)

HPLC: suitable
LPLC: suitable
ion chromatography: suitable

matriz

acrylic ester

Grupo ativo da matriz

polymer

tamanho de partícula

40-60 mesh

tamanho de poro

~0.79 mL/g pore volume
225 Å mean pore size

área da superfície

140 m2/g

densidade

1.09 g/mL at 25 °C (true wet)(lit.)
1.23 g/mL at 25 °C (skeletal)(lit.)

técnica de separação

reversed phase

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Descrição geral

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.

Aplicação

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 de preparo

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.

Informações legais

Supelite is a trademark of Sigma-Aldrich Co. LLC

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)

WGK Alemanha

3

Certificado de análise
Certificado de origem
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)
Hua Zhang et al.
The Science of the total environment, 407(2), 879-886 (2008-11-15)
Dissolved organic matter (DOM) in leachate samples collected at Laogang Sanitary Landfill in Shanghai, China were fractionated using size exclusion chromatography and were characterized using estrogen receptor-alpha competitor screening assay as toxicity activity index. The estrogen activity of leachate was...
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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