The IonPac^® Cryptand C1 Concentrator column is designed primarily for the analysis of trace perchlorate in drinking water.  A method using the Cryptand C1 Concentrator column can quantify 140 ng/L of perchlorate in a background of total dissolved solids (chloride, carbonate, and sulfate) at concentrations as high as 3000 mg/L. The Cryptand C1 Concentrator column is the specified concentrator column for sample preconcentration in U.S. EPA Method 314.1.

The Cryptand C1 Concentrator Column is an adjustable capacity concentrator column containing a macroporous, 17.5-µm resin which has been grafted with the macrocyclic 2,2,2 cryptand compound. This column has approximately 30 µeq/col of cryptand capacity available for use. The functional capacity is dependent upon the eluent concentration as well as the type of cation that is bound within the cage of the cryptand molecule. The unique ability to adjust the capacity of the column from a fixed amount to zero capacity can be achieved by changing either the eluent concentration or the type of cation. This unique feature of the Cryptand C1 concentrator column makes it a powerful tool for the determination of trace perchlorate in drinking water and high ionic strength water.