This is an Application Brief and does not contain a detailed Experimental section.
This application brief describes the gradient separation of catecholamines on Atlantis HILIC Silica column.
The compounds used in this study are:
| 
                     Column:  | 
                     Atlantis HILIC Silica, 4.6 x 50 mm, 5 μm  | 
            
| 
                     Part Number:  | 
                     186002028  | 
            
| 
                     Mobile Phase A:  | 
                     H2O  | 
            
| 
                     Mobile Phase B:  | 
                     ACN  | 
            
| 
                     Mobile Phase C:  | 
                     200 mM NH4COOH, pH 3.0  | 
            
| 
                     Flow Rate:  | 
                     2.0 mL/min  | 
            
| 
                     Injection Volume:  | 
                     5.0 μL  | 
            
| 
                     Sample Diluent:  | 
                     75:25 ACN:MeOH with 0.2% FA  | 
            
| 
                     Sample Concentration:  | 
                     42 μg/mL Norepinephrine (NE), 17 μg/mL Epinephrine (E), 83 μg/mL 3-hydroxytyramine (Dopamine)  | 
            
| 
                     Detection:  | 
                     UV @ 280 nm  | 
            
| 
                     Temperature:  | 
                     Ambient  | 
            
| 
                     Instrument:  | 
                     Waters Alliance System, 2695 Separations Module with 2996 PDA  | 
            
| 
                     Time(min)  | 
                     Profile  | 
            ||
|---|---|---|---|
| 
                     %A  | 
                     %B  | 
                     %C  | 
            |
| 
                     0.0  | 
                     0  | 
                     95  | 
                     5  | 
            
| 
                     5.0  | 
                     25  | 
                     7  | 
                     5  | 
            
            
        WA64073, August 2009