Research Article

Determination of the Chemical Stability of Cyanocobalamin in Medical Food by a Validated Immunoaffinity Column-Linked HPLC Method

Figure 1

Sensitivity of cyanocobalamin: (a) absorption spectra of cyanocobalamin solution; (b) comparison of sensitivity on wavelength 361 and 550 nm through HPLC chromatogram.
(a)
(b)