Research Article
Development of Simple Analytical Method for B-Group Vitamins in Nutritional Products: Enzymatic Digestion and UPLC-MS/MS Quantification
Table 8
Concentrations (µg/100 g) of B-group vitamins in nutritional products purchased in Hanoi, Vietnam (UM: UHT milk, PM: powdered milk, NP: nutritional powder, ND: not detected).
| | | THI | RIB | NIC | NIA | PYN | PYL | PYM |
| | UM-1 | 23.8 | 100 | 1130 | 11.4 | 81.9 | ND | ND | | UM-2 | 93.7 | 110 | 1170 | 14.8 | 86.0 | ND | ND | | UM-3 | 78.1 | 122 | 1050 | 48.6 | 98.0 | ND | ND | | UM-4 | 23.8 | 91.0 | 933 | ND | 86.0 | ND | ND | | UM-5 | 37.1 | 90.0 | 724 | ND | 80.0 | ND | ND | | PM-1 | 460 | 780 | 8630 | 65.0 | 559 | 40.5 | 20.8 | | PM-2 | 2080 | 2480 | 7310 | 110 | 2300 | 10.0 | 41.0 | | PM-3 | 1050 | 1130 | 7540 | 90.0 | 910 | 45.0 | 24.0 | | PM-4 | 1160 | 1240 | 6560 | 76.0 | 1120 | 52.0 | 21.0 | | PM-5 | 570 | 1100 | 6650 | 69.0 | 701 | 35.8 | 23.6 | | NP-1 | 590 | 620 | 1720 | ND | 160 | ND | ND | | NP-2 | 420 | 450 | 4250 | ND | 120 | ND | ND | | NP-3 | 630 | 590 | 1730 | ND | 110 | ND | ND | | NP-4 | 420 | 120 | 1200 | ND | 130 | ND | ND | | NP-5 | 710 | 110 | 6350 | ND | 280 | ND | ND |
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