Figure 4From: Chemical stability study of vitamins thiamine, riboflavin, pyridoxine and ascorbic acid in parenteral nutrition for neonatal use Stability study of vitamin B 1 and B 6 . Residual content of B1 (A) and B6 (B) in PN stored at storage temperatures of 4°C and 25°C with and without photoprotection (n = 3 lots; P > 0.05, D3 compared with D0).Back to article page