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.
Measure trace bromate and other oxyhalides in drinking water, ground water, wastewater, and other diverse sample matrices with the Thermo Scientific™ Dionex™ IonPac™ AS23 carbonate eluent anion-exchange column. The column is specifically designed and recommended for the determination of trace bromate, a toxic byproduct of ozone disinfection, in drinking water matrices. The column's high capacity and selectivity facilitate the determination of bromate in drinking water at the low-µg/L level in the presence of high concentration of chloride, sulfate and carbonate. The Dionex IonPac AS23 columns meet the performance requirements of U.S. EPA Methods 300.0 and 300.1.
Separate haloacetic acids and bromate in drinking water samples with the Thermo Scientific™ Dionex™ IonPac™ AS24 Analytical & Guard Columns. This high-capacity hydroxide-selective anion-exchange column was developed specifically for the separation of haloacetic acids and bromate in drinking water prior to detection with mass spectrometry. The 2x250mm format is the column specified in U.S. EPA Method 557. The capacity and selectivity of the Dionex IonPac AS24 column enables analysis of haloacetic acids in drinking water at low-µg/L (ppb) concentrations. The column is also ideal for the development of specialized applications, providing excellent separation of environmental anions including inorganic anions, oxyhalides, oxyanions, and organic acids in complex matrices.
Separate common cations in as little as four minutes using methanesulfonic acid (MSA) or sulfuric acid eluents with Thermo Scientific™ Dionex™ IonPac™ CS12A Cation-Exchange Columns. These medium-capacity, carboxylate-functionalized cation-exchange columns are recommended for fast, isocratic separation of lithium, sodium, ammonium, potassium, magnesium, and calcium in diverse sample matrices. The IonPac CS12A column is the recommended replacement for all IonPac CS12 column applications.
Separate organic acids and inorganic anions in complex matrices in approximately 25 minutes using the Thermo Scientific™ Dionex™ IonSwift™ MAX-100 Anion-Exchange column. Dionex IonSwift columns use monolith media, which is uniquely designed and engineered for fast separation of small molecules, including organic acids and inorganic anions. The Dionex IonSwift MAX-100 column is designed to provide high-speed, high-resolution gradient separations of organic acids and inorganic anions in diverse matrices including foods, beverages, process solutions, and wastewaters. For highest ion exchange capacity and best resolution, the Thermo Scientific™ Dionex™ IonPac™ AS11-HC-4µm column is recommended.
Obtain robust, reliable results and fast isocratic separation of common inorganic cations and alkanolamines using the Thermo Scientific™ Dionex™ IonPac™ CS12 Cation-Exchange Column. This is a high-capacity, cation-exchange column designed for the fast, isocratic separation of lithium, sodium, ammonium, potassium, magnesium, and calcium using methanesulfonic or sulfuric acid eluents in diverse sample matrices. However, the newer Thermo Scientific™ Dionex™ IonPac™ CS12A column provides improved performance and is the recommended column for inorganic cation analysis.
For separation of a wide variety of polyvalent anions, including polyphosphates, polyphosphonates, and other polyvalent complexing agents, the Thermo Scientific™ Dionex™ IonPac™ AS7 anion-exchange column delivers excellent results. The column has a unique polymer packing that provides superior performance for separating ionic and polar compounds that offers high speed, high efficiency, and high loading capacity at moderate backpressures. However, the newer Dionex IonPac AS16 column is recommended for determination of polyphosphates.
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.
For predictable high resoolution separation of mono-, di-, and some oligosaccharides, use the Thermo Scientific™ Dionex™ CarboPac™ PA1 (1 mm) columns, when operating in Dual EGC mode on Thermo Scientific™ Dionex™ ICS-6000 HPIC™ systems equipped with Thermo Scientific™ Chromeleon™ CDS software. Dual EGC mode enables electrolytic generation of potassium methane sulfonate and potassium hydroxide gradients (KMSA/KOH) gradient eluent for carbohydrate analysis using a Dionex KOH EGC 400 KOH Eluent Generator Cartridge and a Dionex MSA EGC 400 MSA Eluent Generator Cartridge in series. Using the Dual EGC allows for an expanded set of samples for gradient separations of some oligosaccharides along with mono-, di-, and trisaccharide's using electrolytically generated potassium methane sulfonate and potassium hydroxide gradients with a combined concentration up to 200 mM. Many separations require only an isocratic separation. However, some groups of analytes will require a step or gradient elution. Retention of carbohydrates can be varied with eluent concentration, in some cases changing the elution order as the eluent concentration increases.
Use the Thermo Scientific™ Dionex™ TMC-1Trace Metal Concentrator Column to concentrate trace metals for chelation ion chromatography. Containing a fully sulfonated high capacity cation exchange resin, the Dionex IonPac TMC-1 column has ion-exchange capacity with affinity for alkaline-earth, transition, and lanthanide metals. The TMC-1 is specifically designed for interfacing with the Thermo Scientific™ Dionex™ MetPac™ CC-1, and Thermo Scientific™ Dionex™ IonPac™ CS5 and CS5A columns.
Achieve shorter run times when separating simple sugars in food/beverage, pharmaceutical, and biofuel samples using Thermo Scientific™ Dionex™ CarboPac™ PA20-Fast-4µm columns. Compared to standard Dionex CarboPac PA20 columns, the new Dionex CarboPac PA20-Fast-4µm columns use smaller resin particles that produce more efficient peaks, resulting in more accurate integration and more reliable results. The smaller resin particles combined with reduced column length provide approximately 50% shorter runtimes than standard Dionex CarboPac PA20 columns without sacrificing performance.
Achieve high resolution separations of trace oxyhalides and inorganic anions in drinking water using the Thermo Scientific™ Dionex™ IonPac™ AS19-4µm hydroxide-selective anion-exchange column. Its high resolution, high capacity and selectivity allow the determination of bromate in drinking water at the low-μg/L level. Compared to the previous Dionex IonPac AS19 column, this anion-exchange column uses smaller resin particles for more efficient separations resulting in more accurate peak integration and more reliable results.
Separate higher-valence anions, including polyphosphates, oxyanions, EDTA complexes, metal cyanide complexes, and hydrophobic anions such as iodide, thiosulfate, and thiocyanate with Thermo Scientific™ Dionex™ IonPac™ AS5 Analytical Columns. IonPac polymeric columns address a variety of chromatographic separation modes including ion exchange, ion exclusion, reversed-phase ion pairing, and ion suppression.
Obtain excellent selectivity and peak shapes for hydrophobic amines in complex matrices without solvent using the Thermo Scientific™ Dionex™ IonPac™ CS17 column. This medium-capacity, carboxylate-functionalized column is optimized for the gradient separation of hydrophobic and polyvalent amines using simple aqueous eluents and elevated temperatures (40˚C). It is intended for analysis of power plant waters treated with ammonium, morpholine, or ethanolamine; chemical additives; chemical process solutions; scrubber solutions; plating baths; industrial solvents; and food samples.
Separate inorganic anions and oxyhalides, such as chlorite and bromate, in environmental samples. The Thermo Scientific™ Dionex™ IonPac™ AS12A Analytical and Guard Columns resolve trace chloride and sulfate in high-carbonate samples and meet or exceed the requirements of U.S EPA Methods 300.0 (A) and (B). However, the advanced, high-capacity IonPac AS23 Carbonate Eluent Anion-Exchange column is recommended for determination of oxyhalides and inorganic anions, such as trace bromate, in ozonated drinking water.