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20278

Supelco

Supelite DAX-8

jar of 100 g

Sinónimos:

XAD-8

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About This Item

Código UNSPSC:
23151817

Formulario

solid

envase

jar of 100 g

técnicas

HPLC: suitable
LPLC: suitable
ion chromatography: suitable

superficie

140 m2/g

Matriz

acrylic ester

grupo activo de la matriz

polymer

tamaño de partícula

40-60 mesh

tamaño de poro

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

densidad

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

técnica de separación

reversed phase

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Descripción general

Supelite DAX-8 is a nonfunctionalised resin with strong hydrophobic organic matter endorsed to humic and fulvic acids.[1] It is also referred as polymethylmethacrylate resin.[2]

Aplicación

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[2]
  • column chromatography[2]
  • extraction procedure and extracts were analysed using Cary Eclipse fluorescence spectrophotometer[3]

Nota de preparación

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.

Información legal

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
156344
154543
153008
152387
150453

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Preguntas

1–4 de 4 Preguntas  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 respuesta

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 respuesta

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. Is there a replacement product for Supelite™ DAX-8 (XAD-8)

    1 respuesta

    1. There is no replacement product for Supelite™ DAX-8 (XAD-8).

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  4. What is the Department of Transportation shipping information for this product?

    1 respuesta

    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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