Jump to main content
Jump to site search


Quantum yield for the photo-degradation of vitamin D3

Author affiliations

Abstract

Ultraviolet radiation can photodegrade vitamin D3 to suprasterol I, superasterol II and 5,6-transvitamin D3. The probability of the photodegradation of vitamin D3, after the absorption of one photon, is called the quantum yield. We estimated the quantum yield ϕ for all the degeneration reactions together on the basis of the results reported by Webb et al. (1989) for a degradation experiment on pure, tritiated vitamin D3 in methanol in sunlight. We find ϕ = (0.42 ± 0.1). This value of the quantum yield can be used to estimate the kinetics contribution from vitamin D3 degradation in exposure experiments and model calculations.

Graphical abstract: Quantum yield for the photo-degradation of vitamin D3

Back to tab navigation
Please wait while Download options loads

Publication details

The article was received on 27 Oct 2016, accepted on 26 Feb 2017, published on 27 Feb 2017 and first published online on 27 Feb 2017


Article type: Paper
DOI: 10.1039/C6PP00393A
Citation: Photochem. Photobiol. Sci., 2017, Advance Article
  •   Request permissions

    Quantum yield for the photo-degradation of vitamin D3

    A. van Dijk, Photochem. Photobiol. Sci., 2017, Advance Article , DOI: 10.1039/C6PP00393A

Search articles by author