Thermo Scientific™

Dionex™ IonPac™ AS23-4µm Analytical and Guard Columns

Catalog number: 302555
Thermo Scientific™

Dionex™ IonPac™ AS23-4µm Analytical and Guard Columns

Catalog number: 302555

Analyze trace bromate and other oxyhalides in drinking water, ground water, wastewater, and other diverse matrices using the Thermo Scientific™ Dionex™ IonPac™ AS23-4µm columns. The high capacity and selectivity of this column facilitates the determination of trace bromate at low-µg/L levels in the presence of high amounts of chloride, sulfate, and carbonate. Compared to Dionex IonPac AS23 column, the new Dionex IonPac AS23-4µm columns use smaller resin particles for more efficient separations resulting in more accurate peak integration and more reliable results.

 
Catalog Number
302555
Unit Size
Each 1
Diameter (Metric)
4 mm
Length (Metric)
250 mm
Particle Size
4 µm
For Use With (Equipment)
Dionex IonPac AG23-4µm Standard Bore Guard Column
Price (USD)
1,433.64
Your Price:
Availability
***
Full specifications
Quantity
Packing MaterialPolyvinylbenzyl Ammonium Polymer/Divinylbenzene
Column Capacity320 µeq
Column ChemistryCarbonate/Bicarbonate
Flow Rate1.0 mL/min.
For Use With (Application)Anion Exchange
For Use With (Equipment)Dionex IonPac AG23-4µm Standard Bore Guard Column
HydrophobicityUltralow
Ion Exchange GroupAlkanol Quaternary Ammonium Ion
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size4 µm
Stationary PhaseIonPac AS23-4µm
TypeStandard Bore Analytical Column
Length (Metric)250 mm
Diameter (Metric)4 mm
Crosslinking55% DVB
Column ConstructionPEEK
Anion Exchange Capacity320 µeq
Unit SizeEach 1
Catalog Number
Unit Size
Each 1
Diameter (Metric)
4 mm
Length (Metric)
50 mm
Particle Size
11 µm
For Use With (Equipment)
Dionex IonPac AS23-4µm Standard Bore Analytical Column
Price (USD)
473.38
Your Price:
Availability
***
Full specifications
Quantity
Packing MaterialPolyvinylbenzyl Ammonium Polymer/Divinylbenzene
Column Capacity6 µeq
Column ChemistryCarbonate/Bicarbonate
Flow Rate1.0 to 1.5 mL/min.
For Use With (Application)Anion Exchange
For Use With (Equipment)Dionex IonPac AS23-4µm Standard Bore Analytical Column
HydrophobicityUltralow
Ion Exchange GroupAlkanol Quaternary Ammonium Ion
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size11 µm
Stationary PhaseIonPac AG23-4µm
TypeStandard Bore Guard Column
Length (Metric)50 mm
Diameter (Metric)4 mm
Crosslinking55% DVB
Column ConstructionPEEK
Anion Exchange Capacity6 µeq
Unit SizeEach 1
Catalog Number
Unit Size
Each 1
Diameter (Metric)
2 mm
Length (Metric)
250 mm
Particle Size
4 µm
For Use With (Equipment)
Dionex IonPac AG23-4µm Microbore Guard Column
Price (USD)
1,433.64
Your Price:
Availability
***
Full specifications
Quantity
Packing MaterialPolyvinylbenzyl Ammonium Polymer/Divinylbenzene
Column Capacity80 µeq
Column ChemistryCarbonate/Bicarbonate
Flow Rate0.25 to 0.40 mL/min.
For Use With (Application)Anion Exchange
For Use With (Equipment)Dionex IonPac AG23-4µm Microbore Guard Column
HydrophobicityUltralow
Ion Exchange GroupAlkanol Quaternary Ammonium Ion
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size4 µm
Stationary PhaseIonPac AS23-4µm
TypeMicrobore Analytical Column
Length (Metric)250 mm
Diameter (Metric)2 mm
Crosslinking55% DVB
Column ConstructionPEEK
Anion Exchange Capacity80 µeq
Unit SizeEach 1
Catalog Number
Unit Size
Each 1
Diameter (Metric)
2 mm
Length (Metric)
50 mm
Particle Size
11 µm
For Use With (Equipment)
Dionex IonPac AS23-4µm Microbore Analytical Column
Price (USD)
473.38
Your Price:
Availability
***
Full specifications
Quantity
Packing MaterialPolyvinylbenzyl Ammonium Polymer/Divinylbenzene
Column Capacity1.5 µeq
Column ChemistryCarbonate/Bicarbonate
Flow Rate0.25 to 0.40 mL/min.
For Use With (Application)Anion Exchange
For Use With (Equipment)Dionex IonPac AS23-4µm Microbore Analytical Column
HydrophobicityUltralow
Ion Exchange GroupAlkanol Quaternary Ammonium Ion
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size11 µm
Stationary PhaseIonPac AG23-4µm
TypeMicrobore Guard Column
Length (Metric)50 mm
Diameter (Metric)2 mm
Crosslinking55% DVB
Column ConstructionPEEK
Anion Exchange Capacity1.5 µeq
Unit SizeEach 1
Showing 4 of 4
Catalog NumberSpecificationsUnit SizeDiameter (Metric)Length (Metric)Particle SizeFor Use With (Equipment)Price (USD)AvailabilityQuantity
302555Full specifications
Each 14 mm250 mm4 µmDionex IonPac AG23-4µm Standard Bore Guard Column
1,433.64
Your Price:
***
Packing MaterialPolyvinylbenzyl Ammonium Polymer/Divinylbenzene
Column Capacity320 µeq
Column ChemistryCarbonate/Bicarbonate
Flow Rate1.0 mL/min.
For Use With (Application)Anion Exchange
For Use With (Equipment)Dionex IonPac AG23-4µm Standard Bore Guard Column
HydrophobicityUltralow
Ion Exchange GroupAlkanol Quaternary Ammonium Ion
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size4 µm
Stationary PhaseIonPac AS23-4µm
TypeStandard Bore Analytical Column
Length (Metric)250 mm
Diameter (Metric)4 mm
Crosslinking55% DVB
Column ConstructionPEEK
Anion Exchange Capacity320 µeq
Unit SizeEach 1
302556Full specifications
Each 14 mm50 mm11 µmDionex IonPac AS23-4µm Standard Bore Analytical Column
473.38
Your Price:
***
Packing MaterialPolyvinylbenzyl Ammonium Polymer/Divinylbenzene
Column Capacity6 µeq
Column ChemistryCarbonate/Bicarbonate
Flow Rate1.0 to 1.5 mL/min.
For Use With (Application)Anion Exchange
For Use With (Equipment)Dionex IonPac AS23-4µm Standard Bore Analytical Column
HydrophobicityUltralow
Ion Exchange GroupAlkanol Quaternary Ammonium Ion
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size11 µm
Stationary PhaseIonPac AG23-4µm
TypeStandard Bore Guard Column
Length (Metric)50 mm
Diameter (Metric)4 mm
Crosslinking55% DVB
Column ConstructionPEEK
Anion Exchange Capacity6 µeq
Unit SizeEach 1
302557Full specifications
Each 12 mm250 mm4 µmDionex IonPac AG23-4µm Microbore Guard Column
1,433.64
Your Price:
***
Packing MaterialPolyvinylbenzyl Ammonium Polymer/Divinylbenzene
Column Capacity80 µeq
Column ChemistryCarbonate/Bicarbonate
Flow Rate0.25 to 0.40 mL/min.
For Use With (Application)Anion Exchange
For Use With (Equipment)Dionex IonPac AG23-4µm Microbore Guard Column
HydrophobicityUltralow
Ion Exchange GroupAlkanol Quaternary Ammonium Ion
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size4 µm
Stationary PhaseIonPac AS23-4µm
TypeMicrobore Analytical Column
Length (Metric)250 mm
Diameter (Metric)2 mm
Crosslinking55% DVB
Column ConstructionPEEK
Anion Exchange Capacity80 µeq
Unit SizeEach 1
302558Full specifications
Each 12 mm50 mm11 µmDionex IonPac AS23-4µm Microbore Analytical Column
473.38
Your Price:
***
Packing MaterialPolyvinylbenzyl Ammonium Polymer/Divinylbenzene
Column Capacity1.5 µeq
Column ChemistryCarbonate/Bicarbonate
Flow Rate0.25 to 0.40 mL/min.
For Use With (Application)Anion Exchange
For Use With (Equipment)Dionex IonPac AS23-4µm Microbore Analytical Column
HydrophobicityUltralow
Ion Exchange GroupAlkanol Quaternary Ammonium Ion
Max. Pressure5000 psi (345 bar)
Mobile Phase CompatibilitypH 0 to 14, 0 to 100% HPLC Solvents
Particle Size11 µm
Stationary PhaseIonPac AG23-4µm
TypeMicrobore Guard Column
Length (Metric)50 mm
Diameter (Metric)2 mm
Crosslinking55% DVB
Column ConstructionPEEK
Anion Exchange Capacity1.5 µeq
Unit SizeEach 1
Showing 4 of 4

Compared to the Thermo Scientific™ Dionex™ IonPac™ AS23 columns, these columns use smaller resin particles for more efficient separations resulting in more accurate peak integration and more reliable results.


Designed Specifically for Trace Bromate Analysis in Drinking Water
  • Use the Dionex IonPac AS23-4µm for diverse matrices including drinking water, ground water, and waste water.
  • High capacity allows routine drinking water analysis without sample pretreatment or preconcentration.
  • Improved efficiencies and resolution compared to the Dionex IonPac AS23 column.
  • Easily transfer applications from the Dionex IonPac AS23 column to the AS23-4µm column due to the similar selectivity.
  • Compatible with organic solvents to enhance analyte solubility, modify column selectivity, and facilitate effective column clean-up.

Use With a High-Pressure IC System

Higher resolution is achieved through the use of smaller resin particles, which produce a column backpressure over 3000psi at the standard flow rates. A high-pressure IC system, such as the Thermo Scientific™ Dionex™ ICS-5000+ HPIC™ or the Thermo Scientific™ Dionex™ Integrion™ HPIC™ system is required to operate this column under standard conditions and take advantage of elevated flow rates and faster run times.


Multiple Formats Available
  • 4x250mm and 2x250mm analytical columns
  • 4x50mm and 2x50mm guard columns

Note: Use the Dionex AS23 Eluent Concentrate for simple, accurate eluent preparation.

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.

Figures

Frequently asked questions (FAQs)

Citations & References