4-Pyridoxic Acid in the Spent Dialysate: Contribution to Fluorescence and Optical Monitoring
Fig 2
Example of an averaged Ex320/Em430 nm chromatogram of the spent dialysate (N = 10).
Samples were collected 7–10 min after the start of the dialysis. Compound 2 was identified as 4-pyridoxic acid. Raised chromatogram is of a reference 4-pyridoxic acid solution (1 μM).