 
            
        This is an Application Brief and does not contain a detailed Experimental section.
This application brief highlights the analysis of metoprolol using XTerra MS C18 columns.
Metoprolol using LC-MS has been analyzed in this study.
 
            
        | Column: | XTerra MS C18 2.1 x 30 mm, 3.5 μm (p/n: 186000398) | 
| Mobile phase A: | 0.1% HCOOH in H2O, pH 2.5 | 
| Mobile phase B: | 0.1% HCOOH in CAN, pH 2.5 | 
| Isocratic mobile phase composition: | 90%A; 10%B | 
| Flow rate: | 0.2 mL/min to MS | 
| Injection volume: | 20 μL of 100 pg/μL | 
| Temperature: | Ambient | 
| Detection: | MS ESI+, SIR 268.12 | 
| Instrument: | Alliance 2795 HT, Micromass ZQ | 
| MS sytem: | Micromass ZQ | 
| Ion source: | ESI+ | 
| Capillary: | 3.0 kV | 
| Cone: | 30 V | 
| Extractor: | 3.0 | 
| RF Lens: | 0.5 | 
| Source temp.: | 150 °C | 
| Desolvation temp.: | 350 °C | 
| Cone gas flow: | 60 L/hr | 
| Desolvation gas flow: | 500 L/hr | 
| LM Resolution: | 15 | 
| HM Resolution: | 15 | 
| Ion energy: | 1 | 
| Multiplier (V): | 650 | 
 
            
        WA20738.072, June 2002