 
            
        This is an Application Brief and does not contain a detailed Experimental section.
This application brief demonstrates the analysis of atrovastatin using XTerra RP18 Columns.
In this study the compound analyzed is atorvastatin.
 
            
        | Column: | XTerra RP18 4.6 x 100 mm, 3.5 µm | 
| Part number: | 186000438 | 
| Mobile phase A: | 10 mM NH4COOH, pH 3.0 | 
| Mobile phase A: | 10 mM NH4HCO3, pH 7.0 | 
| Mobile phase A: | 10 mM NH4HCO3, pH 10.0 | 
| Mobile phase B: | ACN | 
| Isocratic Conditions as Indicated | |
| Flow rate: | 1.4 mL/min | 
| Injection volume: | 2 µL | 
| Sample Concentration: | 0.25 mg/mL | 
| Temperature: | 30 °C | 
| Detection: | UV @ 254 nm | 
| Instrument: | Alliance 2795 HT, 2996 PDA | 
| Mobile Phase pH | USP Tailing | 
|---|---|
| 3.0 | 1.04 | 
| 7.0 | 1.19 | 
| 10.0 | 1.11 | 
 
            
        WA20738.014, June 2002