Hydroxide-Selective Anion-Exchange IC Columns

Analyze inorganic anions, oxyhalides, and disinfection byproducts in complex matrices

These columns are commonly used to analyze simple and multivalent inorganic anions, oxyhalides, and disinfection byproducts (DBPs). Used with an eluent generator for isocratic and gradient analysis, Thermo Scientific™ Dionex™ IonPac™ hydroxide-selective anion-exchange IC columns are available in a wide range of capacities and hydrophobicities to match your specific application.

Column	Recommended use	Target applications
Dionex IonPac AS32-Fast-4µm Columns	Fast analysis of low polarity anions, polysulfonated aromatics, aromatic dyes, pigments, polythionates, persulfate, and perchlorate.	Perchlorate in matrices containing high chloride, carbonate, and sulfate
Dionex IonPac AS31 IC Columns	Fast separation of haloacetic acids (HAAs), bromate, and dalapon in drinking water prior to MS or MS/MS detection.	Haloacetic acids, bromate, and dalapon in drinking water in compliance with U.S. EPA Method 557.
Dionex IonPac AS28-Fast-4µm IC Columns	Fast, high efficiency, high resolution for trace analysis of common inorganic anions and low molecular weight organic acids.	For both high purity water matrices and complex matrices in chemical and petrochemical samples.
Dionex IonPac AS27 IC Columns	Analyze trace bromate in drinking water preserved with ethylenediamine (EDA).	Trace bromate in EDA-preserved drinking water without pretreatment or concentration.
Dionex IonPac AS25 IC Columns	Multivalent and polarizable anions including sulfur species in complex matrices. without the use of solvent.	Iodide, perchlorate, sulfur species (sulfate, sulfite, thiosulfate, and thiocyanate) in wastewater effluent, scrubber solutions, and food and beverage samples.
Dionex IonPac AS24 IC Columns	Separate HAAs and bromate in drinking water samples prior to MS or MS/MS detection.	Haloacetic acids in drinking water as specified in EPA Method 557.
Dionex IonPac AS21 IC Columns	Trace perchlorate prior to MS or MS/MS detection.	Specific for trace perchlorate in drinking water as specified in EPA Method 331.0.
Dionex IonPac AS20 IC Columns	Trace perchlorate prior to suppressed conductivity detection. Capillary format reduces eluent consumption and operating costs. Standard bore 4mm column is used in the first dimension of 2D-IC method for trace perchlorate in drinking water.	Trace perchlorate in drinking water when high concentrations of chloride, carbonate and sulfate are present. Confirmatory column specified in EPA Method 314.1.
Dionex IonPac AS19-4µm IC Columns	High-resolution separations for routine analysis of inorganic anions and oxyhalides. Capillary format reduces eluent consumption and operating costs.	Trace bromate and inorganic anions in drinking water, wastewater, ground water and diverse sample matrices. High-resolution analysis of drinking water without pretreatment or concentration. Meets or exceeds EPA Methods 300.0 and 300.1.
Dionex IonPac AS19 IC Columns	Routine analysis of inorganic anions, bromate and other oxyhalides. Capillary format offers reduced eluent consumption and operating costs.	Trace bromate and inorganic anions in drinking, waste and ground waters in diverse sample matrices. Analysis of drinking water without pretreatment or concentration. Meets or exceeds EPA Methods 300.0 and 300.1.
Dionex IonPac AS18-Fast-4µm IC Columns	Small particle columns for super fast, high-resolution separation of inorganic anions. Requires high-pressure IC for fastest runs. Replacement for Dionex IonPac AS4A, AS12A, AS14A, and AS17-C, and AS18- Fast columns.	Super fast routine analysis of inorganic anions in drinking water and wastewater.
Dionex IonPac AS18-Fast IC Columns	For fast analysis of common inorganic anions and low MW organic acids.	Inorganic anions and low MW organic acids in drinking water and wastewater for compliance with U.S. EPA Methods 300.0 (A) and 300.1, and for other samples such as leachates, foods, beverages, and pharmaceutical preparations.
Dionex IonPac AS18 IC Columns	Higher resolution separation of common inorganic anions and low MW organic acids in more complex sample matrices.	Inorganic anions in diverse sample matrices, including avery broad range of water samples, dump leachates, acid rain, foods, beverages, pharmaceutical counterions, polyols and polysulfonates in compliance with U.S. EPA Method 300.0 (A).
Dionex IonPac AS17-C IC Columns	Low-capacity column for fast gradient separation of inorganic anions in simple sample matrices and high-purity water samples.	Common inorganic anions in a variety of sample matrices including high-purity water, drinking water, wastewater, process streams, and scrubber solutions. Superior retention and quantification of fluoride, acetate, propionate, and formate. Meets requirements of U.S. EPA Method 300.0 (A).
Dionex IonPac AS16 IC Columns	High-capacity column for quick and accurate analysis of trace perchlorate and other hydrophobic, highly polarizable anions in a variety of water matrices. Can be used in second dimension of 2D-IC for sub ppb analysis of trace perchlorate in drinking water.	Trace concentrations of perchlorate in drinking water, surface water, and ground water matrices using a large-loop injection; hydrophobic anions such as iodide, thiocyanate, and thiosulfate; and polyvalent anions including polyphosphates and polycarboxylates.
Dionex IonPac AS15 IC Columns	Analysis of trace-level inorganic anions and low MW organic acids (e.g., glycolate, acetate, and formate) in high-purity water matrices. Available in multiple formats for fast, high efficiency and higher capacity analysis. Used with Dionex IonPac AC15 concentrator column for ppt analyses. The Dionex IonPac AS28-4µm column is a newer alternative for high-pressure users.	Trace inorganic anions and low MW organic acids (e.g., glycolate, acetate, and formate) in high-purity water matrices used by the semiconductor and power generation industries.
Dionex IonPac AS11-HC-4µm IC Columns	Small-particle, high-speed, high-resolution separation of organic acids and inorganic anions in complex matrices or uncharacterized samples.	Organic acids (e.g., quinate, lactate, acetate, propionate, formate, and butyrate) and inorganic anions in complex sample matrices such as foods and beverages, brine, chemical wastewater effluents and fermentation broths.
Dionex IonPac AS11 IC Columns	Low-capacity column designed for fast gradient screening of inorganic anions and organic acids in simple sample matrices.	Inorganic anions and organic acids in simple sample matrices such as foods and beverages, chemical process solutions, wastewaters, brines, and power plant waters.
Dionex IonPac AS11-HC IC Columns	High-capacity column for single-run separations of inorganic anions and organic acids in complex matrices. Recommended for mono- and divalent organic acids.	Organic acids and anions in complex sample matrices or uncharacterized samples such as chemical wastewater effluents and fermentation broths.
Dionex IonPac AS10 IC Columns	High-capacity column for trace-level analysis of inorganic anions and organic acids in high-ionic strength matrices. Provides excellent resolution of weakly retained low MW aliphatic acids.	Trace-level inorganic anions and organic acids in high-ionic strength matrices; well suited for the analysis of trace anions in nitric acid and nitrate salts.
Dionex IonPac Fast Anion IIIA IC Columns	Rapid analysis of phosphoric and citric acids in cola soft drink samples.	Phosphoric and citric acid analysis in cola soft drink beverage industry.
Dionex IonPac AS16-4µm IC Columns	High-efficiency, high-resolution column for quick and accurate analysis of trace perchlorate and other hydrophobic, highly polarizable anions in a variety of sample matrices. Requires high-pressure IC system to operate at standard flow rates. Can be used in second dimension of 2D-IC for sub ppb analysis of trace perchlorate in drinking water.	Trace concentrations of perchlorate in drinking water, surface water, and ground water matrices using a large-loop injection; hydrophobic anions such as iodide, thiocyanate, and thiosulfate; polyvalent anions including polyphosphates and polycarboxylates.