 
            
        This is an Application Brief and does not contain a detailed Experimental section.
This application brief highlights the analysis of Pseudoephedrine HCL and Chlorpheniramine using Symmetry columns.
The compounds analyzed in this study are:
 
            
        | Column: | Symmetry C18, 3.9 x 150 mm, 5 μm | 
| Part number: | WAT046970 | 
| Mobile phase A: | 50 mM potassium phosphate, pH 3.0 | 
| Mobile phase B: | Acetonitrile | 
| Flow rate: | 1.0 mL/min | 
| Injection volume: | 5 μL of 1.8 mg/mL pseudoephedrine and 120 μg/mL chlorpheniramine sample | 
| Detection: | UV @ 261 nm | 
 
            
         
            
        WA31763.137, June 2003