Attain the optimal combination of chromatographic speed and resolution using the Thermo Scientific™ Dionex™ IonPac™ AS22-Fast-4µm column. Designed specifically for compliance monitoring of inorganic anions in accordance with U.S. EPA Method 300.0 (A), this moderate capacity column combines the selectivity of the Dionex IonPac AS22-Fast column with fast high resolution separations. Compared to the Dionex IonPac AS22-Fast column, the new Dionex IonPac AS22-Fast-4µm column uses smaller resin particles for more efficient separations resulting in faster run times, more accurate peak integration and more reliable results.
Higher resolution is achieved through the use of smaller resin particles, which can produce a column backpressure over 3000 psi. When operating the Dionex IonPac AS22-Fast-4µm column, a high-pressure IC system, such as the Thermo Scientific™ Dionex™ ICS-5000+ HPIC or the Dionex ICS-4000 HPIC is required.
The Dionex IonPac AS22-Fast-4µm capillary column provides the same performance as the standard bore and microbore Dionex IonPac AS22-Fast-4µm columns because it is packed with the same material. Operating costs are reduced because the capillary system operates at only 1% of the eluent flow rate of the standard bore system, requiring less eluent and producing less waste.
Note: For simple, accurate eluent preparation, use the Dionex IonPac AS22 Eluent Concentrate or the Dionex Eluent Generator (Dionex EGC 500 K2CO3 cartridge with Dionex EPM 500 pH modifier).