Description
Length (Metric): 50 mm
Diameter (Metric): 4 mm
Column Type: Guard Column
Unit Size: Each 1
High Resolution of Complex Sample Matrices
• Longer 250 mm Dionex IonPac AS18 hydroxide-selective columns provide higher resolution separations of more complex sample matrices
• Available in standard bore, microbore, and capillary formats Analysis of Common Inorganic Anions and Low Molecular Weight OrganicAcids 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 250 mm column
• Higher-capacity applications use 250 mm 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 cleanupRecommended 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 solutionsMultiple 250 mm Formats for Application FlexibilityGet higher resolution separations of more complex sample matrices using these longer 250 mm 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:
• 4 x 250 mm standard bore column with the 4 x 50 mm guard column
• 2 x 250 mm microbore columns with the 2 x 50 mm guard column
• 0.4 x 250 mm capillary columns with the 0.4 x 50 mm guard columnCapillary Columns Reduce Operating Costs from Lower Eluent RequirementsCapillary 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 150 mm 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.
