Thermo Fisher 088487 Each 1 Dionex IonPac AS22-Fast-4μm ICcolumn,Standard hole guard column
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Use Thermo Scientific™ Dionex™ IonPac™ AS22-Fast-4µm columns to achieve an excellent balance of chromatographic speed and resolution. Designed for compliance monitoring of inorganic anions according to US EPA Method 300.0 (A), this mid-capacity column combines the selectivity of Dionex IonPac AS22-Fast columns with high-resolution rapid separations. Compared to Dionex IonPac AS22-Fast columns, the new Dionex IonPac AS22-Fast-4µm columns use smaller resin particles to improve separation efficiency, resulting in shorter run times, more accurate peak integration, and more reliable results.

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Quickly separate common inorganic anions with excellent resolution
  • Achieve the highest peak efficiency for common inorganic anions in different sample matrices by using smaller resin particles
  • Rapid isocratic separation of common inorganic anions in less than 5 minutes
  • Compliance monitoring of common anions in drinking water as described in U.S. EPA Method 300.0 (A)
  • Excellent separation of inorganic anions and low molecular weight acids in a variety of sample matrices
  • Achieve extremely high peak efficiency and improved resolution for more consistent integration and more reliable results
  • Easily transfer applications—this 4µm column has the same selectivity as Dionex IonPac AS22-Fast columns
  • Achieve excellent separation between carbonate peaks and common inorganic anion peaks Resolution
  • Shortened run times compared to Dionex IonPac AS22-Fast columns, but resolution is not affected
  • Using carbonate/bicarbonate eluents, yes An alternative for faster Dionex IonPac AS4A-SC, AS12A, AS14, AS14A and AS22 inorganic anion applications
  • Compatible with organic solvents to improve analyte solubility, change column selectivity, or facilitate Effective column cleaning

Lower eluent requirements, lower operating costs

Dionex IonPac AS22-Fast-4µm capillary tubes use the same packing material The column provides the same performance as standard bore and microbore Dionex IonPac AS22-Fast-4µm columns. Because capillary systems operate at only 1% of the eluent flow rate of standard orifice systems, less eluent is required and less waste is produced, thus reducing operating costs.


Use the product specifications that fit your laboratory
  • 4x150mm, 2x150mm analytical column
  • 4x30mm, 2x30mm guard column
  • Shorter 150mm columns help speed up runs while smaller particles maintain higher resolution separations

Note: For simple, accurate preparation, use Dionex IonPac AS22 concentrated eluent or Dionex eluent generator (Dionex EGC 500 K2CO3 eluent tank with Dionex EPM 500 pH adjuster).

Limited Warranty Period: Subject to all warranty requirements and exclusions identified in our Terms and Conditions of Sale, This product is warranted for ninety (90) days from the date of shipment of the product. Disclaimer of Restrictions on Use for Internal Research: Any restrictions on the use of Products by Purchaser solely for internal research do not apply to the Products on the web page to which this disclaimer relates.