 
            
        This is an Application Brief and does not contain a detailed Experimental section.
This application brief demonstrates the UPLC Analysis of water soluble vitamins.
 
            
         
            
         
            
         
            
         
            
         
            
         
            
         
            
        1. Nicotinamide (25 μg/mL)
2. Pyridoxal (50 μg/mL)
3. Riboflavin (50 μg/mL)
4. Nicotinic acid (50 μg/mL)
5. Thiamine (50 μg/mL)
6. Ascorbic acid (25 μg/mL)
7. B12 (50 μg/mL)
8. Folic Acid (25 μg/mL)
| Column: | ACQUITY UPLC BEH Amide, 2.1 x 50 mm, 1.7 μm | 
| Part Number: | 186004800 | 
| Mobile Phase A: | 50/50 MeCN/H2O with 10 mM CH3COONH4 and 0.04 % NH4OH, pH 9.0 | 
| Mobile Phase B: | 90/10 MeCN/H2O with 10 mM CH3COONH4 and 0.04 % NH4OH, pH 9.0 | 
| Flow Rate: | 0.5 mL/min | 
| Injection Volume: | 5 μL (PLNO) | 
| Sample Diluent: | 75/25 MeCN/MeOH with 0.2% HCOOH | 
| Column Temperature: | 30 °C | 
| Weak Needle Wash: | 95/5 MeCN/H2O | 
| Detection: | UV @ 265nm | 
| Sampling Rate: | 20 points/sec | 
| Filter Time Constant: | 0.2 | 
| Instrument: | Waters ACQUITY UPLC with ACQUITY UPLC PDA Detector | 
| Time (min) | %A | %B | 
|---|---|---|
| Initial | 0.1 | 99.9 | 
| 3.50 | 70.0 | 30.0 | 
| 3.51 | 0.1 | 99.9 | 
| 7.50 | 0.1 | 99.9 | 
 
            
        WA60093, June 2009