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Assessment of vitamin D sulphate in human milk using desorption chemical ionization mass spectrometry

✍ Scribed by N. Le Boulch; L. Cancela; L. Miravet; C. Lange

Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
258 KB
Volume
13
Category
Article
ISSN
1076-5174

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✦ Synopsis

Vitamin D3 sulphate (SD3) identification in human milk was obtained using Desorption Chemical Ionization (DCI). The chemical ionization reagent gas used was nitrogen, molecules were ionized when the emitter was heated. SD3 was obtained from lactarium human milk and purified by high-performance liquid chromatography (HPLC). A selected ion monitoring (SIM) measurement was carried out with typical ions, m/z 366 for SD3 and m/z 384 for parent vitamin D3, the intensity ratio (I366/I384) greater than 1 being related to the presence of the sulphoconjugated form of vitamin D3 in the sample analysed. The detection of small quantities of SD3 in human milk is possible using this technique.

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