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