 
            
        This is an Application Brief and does not contain a detailed Experimental section.
This application brief highlights the analysis of CNS depressants.
Compounds studied in this application brief are shown below.
 
            
        | Column: | SunFire C18 4.6 x 150 mm, 5.0 μm (p/n: 186002559) | 
| Mobile phase A: | Water | 
| Mobile phase B: | Acetonitrile | 
| Mobile phase C: | 2% CH3COOH in water | 
| Flow rate: | 1 mL/min | 
| Injection volume: | 10 μL | 
| Isocratic Mobile Phase Conditions: | 55% A, 35% B, 10% C | 
| Sample concentration: | 10 μg/mL in water | 
| Temperature: | 30 °C | 
| Detection: | UV @ 254 nm | 
| Instrument: | Alliance 2695 with 2996 PDA | 
 
            
        | Column: | SunFire C8 4.6 x 150 mm, 5.0 μm (p/n: 186002737) | 
| Mobile phase A: | Water | 
| Mobile phase B: | Acetonitrile | 
| Mobile phase C: | 2% Acetic acid in water | 
| Flow rate: | 1 mL/min | 
| Injection volume: | 10 μL | 
| Isocratic Mobile Phase Conditions: | 55% A, 35% B, 10% C | 
| Sample concentration: | 10 μg/mL in water | 
| Temperature: | 30 °C | 
| Detection: | UV @ 254 nm | 
| Instrument: | Alliance 2695 with 2996 PDA | 
 
            
        | Column: | SunFire C8 4.6 x 100 mm, 5.0 μm (p/n: 186002731) | 
| Mobile phase A: | Water | 
| Mobile phase B: | Acetonitrile | 
| Mobile phase C: | 2% Acetic acid in water | 
| Flow rate: | 1 mL/min | 
| Injection volume: | 10 μL | 
| Isocratic Mobile Phase Conditions: | 55% A, 35% B, 10% C | 
| Sample concentration: | 10 μg/mL in water | 
| Temperature: | 30 °C | 
| Detection: | UV @ 254 nm | 
| Instrument: | Alliance 2695 with 2996 PDA | 
 
            
         
            
         
            
         
            
        WA41889, March 2005