 
            
        This is an Application Brief and does not contain a detailed Experimental section.
This application brief demonstrates analysis of acidic veterinary drugs in horse urine by LC-MS.
The compounds used in this study are –
 
            
        | Column: | Xterra MS C18 2.1 x 100 mm, 3.5 μm | 
| Part Number: | 186000404 | 
| Mobile phase A: | 20 mM CH3COONH4, pH 4.0 | 
| Mobile phase B: | MeOH | 
| Flow rate: | 0.175 mL/min | 
| Injection volume: | 10 μL | 
| Detection: | Micromass ZQ | 
| Instrument: | Alliance 2695 | 
 
            
         
            
         
            
        WA20738.005, June 2002