Accessible Requires Authentication Published by De Gruyter November 24, 2018

Need of a dedicated isotopic internal standard for accurate 3-epi-25(OH)D3 quantification by LC-MS/MS

Rosita Zakaria, Charles Fink, Jennifer Koplin, Katie Allen and Ronda F. Greaves


We acknowledge the financial support for our research study of National Health and Medical Research Council, Funder Id: 10.13039/501100000925 (NHMRC) – Centre of Excellence in Paediatric Food Allergy and Food-related Immune Disorders (Grant ID 1041420). Also, we gratefully acknowledge Mr. Michael Rennie (PM Separations) for his valued technical support and providing the internal standard materials.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Employment or leadership: None declared.

  4. Honorarium: None declared.

  5. Competing interests: The funding organisation(s) played no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.


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Received: 2018-09-19
Accepted: 2018-10-30
Published Online: 2018-11-24
Published in Print: 2019-06-26

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