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Identification of vitamins A, D and E by particle beam liquid chromatography-mass spectrometry






Fresenius' Journal of Analytical Chemistry 351(8): 768-776

Identification of vitamins A, D and E by particle beam liquid chromatography-mass spectrometry

Particle beam (PB) high performance liquid chromatography (HPLC)-mass spectrometry (MS) has been studied to investigate its suitability for the analysis of fat-soluble vitamins, as an example of thermally labile substances. The PB LC-MS system has been used to detect and identify vitamins A, D and E in foods and multi-vitamin preparations. The qualitative performance of the PB interface has been evaluated by an examination of the working parameters. A rapid elution of the vitamins was obtained on a C8 reversed-phase column using an aqueous methanol mobile phase. Analyses have been carried out using both, electron (EI) and chemical (CI) ionization. Positive and negative-ion CI spectra of the compounds are discussed. When PB-MS conditions are optimized, the detection limits for the fat-soluble vitamins tested have been typically in the 0.6–25 ng range when using the selected-ion monitoring technique.

Accession: 002863980

DOI: 10.1007/bf00323634

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