Compound ClassGeneral, chemical type or category of compound to be separated. Packing MaterialThe type of resin that is packed inside the column tube. USP ClassUnited States Pharmacopeia HPLC column designation. Particle SizeSize (in micrometers) of the polymer or silica bead packed inside the column tube. Hardware IDInside diameter (in millimeters) of the column tube. Hardware LengthLength of the column tube (in millimeters). Easy Ion Determination Better than Wet Chemical Methods 1. Separation of Anions at 20 ppb on 150 x 4.1 mm PRP-X110 2. Separation of Anions at 0.5 ppm on 150 x 2.1 mm PRP-X110 3. Separation of Anions at 1 ppm on 150 x 4.1 mm PRP-X110 The ion capacity of the ion-exchanger is determined by the number of functional groups per unit weight of the stationary phase. The most commonly used unit is milliequivalents of charge per gram of dry packing, or milliequivalents per ml of wet packing. In the second case it is customary to state the type of counter-ion present in the stationary phase, since it affects the degree of swelling of the packing and hence its volume. The ion-exchange capacity of a stationary phase plays a significant role in determining the concentrations of competing ions used in the mobile phase for elution. Higher capacity stationary phases generally require the use of more concentrated mobile phases, which are problematic when high performance ion-chromatography is concerned, due to the use of conductometric detectors, which cannot function well with high salt concentrations. Typical ion-exchange capacity in IC is 10-100 mequiv/g.
Long Column Life Use for EPA 300.0 PRP-X110 columns can be used in the suppressed conductivity mode for determination of inorganic anions as required in EPA 300.0 Part A (bromide, chloride, fluoride, nitrate, nitrite, phosphate, sulfate) see Application #356.
Polymeric anion exchange packing for separation of inorganic and organic anions from 20 ppb to 20 ppm
Product Features
Catalog Polymer Restoration Instruction Sheet Application Note Product Datasheet |
||||
|
|
||||
|