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Thermo Scientific™

Dionex™ IonPac™ AS18 IC Columns

Catalog number: 060549
Thermo Scientific™

Dionex™ IonPac™ AS18 IC Columns

Catalog number: 060549
Use these longer 250mm Thermo Scientific™ Dionex™ IonPac™ AS18 columns higher resolution separations of more complex sample matrices. Dionex IonPac AS18 columns are high capacity hydroxide-selective anion-exchange columns. They are the column of choice for monitoring inorganic anions in drinking water and wastewater samples for compliance with U.S. EPA Methods 300.0 (A) and 300.1. This column is also recommended when separating the common inorganic anions and low-molecular weight organic acids in diverse sample matrices including drinking water, wastewater, leachates, foods, beverages, pharmaceutical preparations, and scrubber solutions.
 
Catalog Number
060549
Unit Size
Each 1
dimColumnType
Diameter (Metric)
4 mm
Length (Metric)
250 mm
Price (USD)
Full specifications
Packing MaterialEthylvinylbenzene/Divinylbenzene
Certifications/ComplianceU.S. EPA Methods 300.0 (A) and 300.1
Column Capacity285 µeq
Column ChemistryHydroxide
Flow Rate1.0 to 3.0 mL/min.
For Use With (Application)Anion Exchange
For Use With (Equipment)ICS-5000 Capillary IC System
HydrophobicityLow
Ion Exchange GroupAlkanol Quaternary Ammonium Ion
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size7.5 µm
Stationary PhaseIonPac AS18
TypeStandard Bore Analytical Column
pH0 to 14
Length (Metric)250 mm
Diameter (Metric)4 mm
Pore Size2000 &‌Aring;
Latex Crosslinking8%
Diameter (Metric) Latex65 nm
Crosslinking55% DVB
Column ConstructionPEEK
Anion Exchange Capacity285 µeq
Solvents0 to 100% of HPLC Solvents
Unit SizeEach 1
Catalog Number
Unit Size
Each 1
dimColumnType
Diameter (Metric)
2 mm
Length (Metric)
250 mm
Price (USD)
Full specifications
Packing MaterialEthylvinylbenzene/Divinylbenzene
Certifications/ComplianceU.S. EPA Methods 300.0 (A) and 300.1
Column Capacity75 µeq
Column ChemistryHydroxide
Flow Rate0.25 to 0.75 mL/min.
For Use With (Application)Anion Exchange
For Use With (Equipment)ICS-5000 Capillary IC System
HydrophobicityLow
Ion Exchange GroupAlkanol Quaternary Ammonium Ion
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size7.5 µm
Stationary PhaseIonPac AS18
TypeMicrobore Analytical Column
pH0 to 14
Length (Metric)250 mm
Diameter (Metric)2 mm
Pore Size2000 &‌Aring;
Latex Crosslinking8%
Diameter (Metric) Latex65 nm
Crosslinking55% DVB
Column ConstructionPEEK
Anion Exchange Capacity75 µeq
Solvents0 to 100% of HPLC Solvents
Unit SizeEach 1
Catalog Number
Unit Size
Each 1
dimColumnType
Diameter (Metric)
2 mm
Length (Metric)
50 mm
Price (USD)
Full specifications
Certifications/ComplianceU.S. EPA Method 300.0 (A)
Column Capacity2.5 µeq
For Use With (Application)Anion Exchange
For Use With (Equipment)IonPac AS18 Analytical Column
HydrophobicityLow
Max. Pressure4000 psi (275 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size13 µm
Stationary PhaseIonPac AG18
TypeMicrobore Guard Column
Length (Metric)50 mm
Diameter (Metric)2 mm
Unit SizeEach 1
Catalog Number
Unit Size
Each 1
dimColumnType
Diameter (Metric)
4 mm
Length (Metric)
50 mm
Price (USD)
Full specifications
Certifications/ComplianceU.S. EPA Method 300.0 (A)
Column Capacity10 µeq
For Use With (Application)Anion Exchange
For Use With (Equipment)IonPac AS18 Analytical Column
HydrophobicityLow
Max. Pressure4000 psi (275 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size13 µm
Stationary PhaseIonPac AS18
TypeStandard Bore Guard Column
Length (Metric)50 mm
Diameter (Metric)4 mm
Unit SizeEach 1
Catalog Number
Unit Size
Each 1
dimColumnType
Diameter (Metric)
0.4 mm
Length (Metric)
250 mm
Price (USD)
Full specifications
Packing MaterialEthylvinylbenzene/Divinylbenzene
Certifications/ComplianceU.S. EPA Methods 300.0 (A) and 300.1
Column Capacity2.85 µeq
Column ChemistryHydroxide
Flow Rate0.01 to 0.03 mL/min.
For Use With (Application)Anion Exchange
For Use With (Equipment)ICS-5000 Capillary IC System
HydrophobicityLow
Ion Exchange GroupAlkanol Quaternary Ammonium Ion
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size7.5 µm
Stationary PhaseIonPac AS18
TypeCapillary Column
pH0 to 14
Length (Metric)250 mm
Diameter (Metric)0.4 mm
Pore Size2000 &‌Aring;
Latex Crosslinking8%
Diameter (Metric) Latex65 nm
Crosslinking55% DVB
Column ConstructionPEEK
Anion Exchange Capacity2.85 µeq
Solvents0 to 100% of HPLC Solvents
DescriptionAS18; 0.4 x 250 mm
Unit SizeEach 1
Catalog Number
Unit Size
Each 1
dimColumnType
Diameter (Metric)
0.4 mm
Length (Metric)
50 mm
Price (USD)
Full specifications
Certifications/ComplianceU.S. EPA Method 300.0 (A)
Column Capacity1 µeq
For Use With (Application)Anion Exchange
For Use With (Equipment)IonPac AS18 Analytical Column
HydrophobicityLow
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size13 µm
Stationary PhaseIonPac AG18
TypeCapillary Guard Column
Length (Metric)50 mm
Diameter (Metric)0.4 mm
Unit SizeEach 1
Showing 6 of 6
Catalog NumberSpecificationsUnit SizedimColumnTypeDiameter (Metric)Length (Metric)Price (USD)
060549Full specifications
Each 14 mm250 mmContact Us ›
Packing MaterialEthylvinylbenzene/Divinylbenzene
Certifications/ComplianceU.S. EPA Methods 300.0 (A) and 300.1
Column Capacity285 µeq
Column ChemistryHydroxide
Flow Rate1.0 to 3.0 mL/min.
For Use With (Application)Anion Exchange
For Use With (Equipment)ICS-5000 Capillary IC System
HydrophobicityLow
Ion Exchange GroupAlkanol Quaternary Ammonium Ion
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size7.5 µm
Stationary PhaseIonPac AS18
TypeStandard Bore Analytical Column
pH0 to 14
Length (Metric)250 mm
Diameter (Metric)4 mm
Pore Size2000 &‌Aring;
Latex Crosslinking8%
Diameter (Metric) Latex65 nm
Crosslinking55% DVB
Column ConstructionPEEK
Anion Exchange Capacity285 µeq
Solvents0 to 100% of HPLC Solvents
Unit SizeEach 1
060553Full specifications
Each 12 mm250 mmContact Us ›
Packing MaterialEthylvinylbenzene/Divinylbenzene
Certifications/ComplianceU.S. EPA Methods 300.0 (A) and 300.1
Column Capacity75 µeq
Column ChemistryHydroxide
Flow Rate0.25 to 0.75 mL/min.
For Use With (Application)Anion Exchange
For Use With (Equipment)ICS-5000 Capillary IC System
HydrophobicityLow
Ion Exchange GroupAlkanol Quaternary Ammonium Ion
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size7.5 µm
Stationary PhaseIonPac AS18
TypeMicrobore Analytical Column
pH0 to 14
Length (Metric)250 mm
Diameter (Metric)2 mm
Pore Size2000 &‌Aring;
Latex Crosslinking8%
Diameter (Metric) Latex65 nm
Crosslinking55% DVB
Column ConstructionPEEK
Anion Exchange Capacity75 µeq
Solvents0 to 100% of HPLC Solvents
Unit SizeEach 1
060555Full specifications
Each 12 mm50 mmContact Us ›
Certifications/ComplianceU.S. EPA Method 300.0 (A)
Column Capacity2.5 µeq
For Use With (Application)Anion Exchange
For Use With (Equipment)IonPac AS18 Analytical Column
HydrophobicityLow
Max. Pressure4000 psi (275 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size13 µm
Stationary PhaseIonPac AG18
TypeMicrobore Guard Column
Length (Metric)50 mm
Diameter (Metric)2 mm
Unit SizeEach 1
060551Full specifications
Each 14 mm50 mmContact Us ›
Certifications/ComplianceU.S. EPA Method 300.0 (A)
Column Capacity10 µeq
For Use With (Application)Anion Exchange
For Use With (Equipment)IonPac AS18 Analytical Column
HydrophobicityLow
Max. Pressure4000 psi (275 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size13 µm
Stationary PhaseIonPac AS18
TypeStandard Bore Guard Column
Length (Metric)50 mm
Diameter (Metric)4 mm
Unit SizeEach 1
075772Full specifications
Each 10.4 mm250 mmContact Us ›
Packing MaterialEthylvinylbenzene/Divinylbenzene
Certifications/ComplianceU.S. EPA Methods 300.0 (A) and 300.1
Column Capacity2.85 µeq
Column ChemistryHydroxide
Flow Rate0.01 to 0.03 mL/min.
For Use With (Application)Anion Exchange
For Use With (Equipment)ICS-5000 Capillary IC System
HydrophobicityLow
Ion Exchange GroupAlkanol Quaternary Ammonium Ion
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size7.5 µm
Stationary PhaseIonPac AS18
TypeCapillary Column
pH0 to 14
Length (Metric)250 mm
Diameter (Metric)0.4 mm
Pore Size2000 &‌Aring;
Latex Crosslinking8%
Diameter (Metric) Latex65 nm
Crosslinking55% DVB
Column ConstructionPEEK
Anion Exchange Capacity2.85 µeq
Solvents0 to 100% of HPLC Solvents
DescriptionAS18; 0.4 x 250 mm
Unit SizeEach 1
075773Full specifications
Each 10.4 mm50 mmContact Us ›
Certifications/ComplianceU.S. EPA Method 300.0 (A)
Column Capacity1 µeq
For Use With (Application)Anion Exchange
For Use With (Equipment)IonPac AS18 Analytical Column
HydrophobicityLow
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size13 µm
Stationary PhaseIonPac AG18
TypeCapillary Guard Column
Length (Metric)50 mm
Diameter (Metric)0.4 mm
Unit SizeEach 1
Showing 6 of 6
High Resolution of Complex Sample Matrices
  • Longer 250mm Dionex IonPac AS18 hydroxide-selective columns provide higher resolution separations of more complex sample matrices
  • Available in standard bore, microbore, and capillary formatsAnalysis of Common Inorganic Anions and Low Molecular Weight Organic
Acids in Diverse Matrices
  • Compliance monitoring of common anions in drinking water as specified in U.S. EPA Method 300.0 (A)
  • Determination of low levels of inorganic anions in complex matrices using large-loop injections
  • Superior retention and quantification of fluoride, acetate, and formate
  • Isocratic separation of common inorganic anions in 9 min in diverse matrices using a 250mm column
  • Higher-capacity applications use 250mm columns allowing injection of more concentrated samples without overloading or peak broadening
  • Compatible with organic solvents to enhance analyte solubility, modify column selectivity, or allow effective column cleanup
Recommended for Inorganic Anions in Diverse Sample Matrices
  • Source water and drinking water, municipal and industrial wastewater
  • Industrial cooling water, hazardous waste extracts and dump site leachates, acid rain
  • Foods and beverages, anionic counterions in pharmaceutical preparations and synthetic peptides
  • Polymers such as polyols and polysulfonates, scrubber solutions
Multiple 250mm Formats for Application Flexibility

Get higher resolution separations of more complex sample matrices using these longer 250mm analytical columns. Choose from standard bore, microbore, and capillary formats and use the corresponding guard column to protect and increase the life of your analytical column. Use the:

  • 4x250mm standard bore column with the 4x50mm guard column
  • 2x250mm microbore columns with the 2x50mm guard column
  • 0.4x250mm capillary columns with the 0.4x50mm guard column
Capillary Columns Reduce Operating Costs from Lower Eluent Requirements

Capillary columns provide significantly reduced operating and waste disposal costs through eluent conservation. Packed with the same material, the Dionex IonPac AS18 capillary columns provide the same performance as the standard bore and microbore counterparts. Operating costs are reduced because the capillary system operates at only 1% of the eluent flow rate of the standard bore system. Capillary columns are used with the Thermo Scientific™ Dionex™ ICS-4000 and ICS-5000+ Capillary systems.

Get Faster, High-Resolution separations from Dionex IonPac AS18-Fast and Dionex IonPac AS18-4µm Columns
  • For faster runs on relatively clean matrices, refer to the shorter 150mm Dionex™ IonPac™ AS18-Fast Hydroxide-Selective Anion-Exchange Columns
  • For fastest, highest resolution separations, refer to the small particle Dionex™ IonPac™ AS18-4µm Hydroxide-Selective Anion-Exchange Columns. Use of 4µm columns requires a high-pressure IC system.
Limited warranty period: Subject to all warranty requirements and exclusions set out in our Terms and Conditions of Sale, this product is warranted from the date we ship the product and for ninety (90) days thereafter. Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.