Vitamin D SMPR Revision
7 Validation Guidance Appendix D: Guidelines for Collaborative Study Procedures to Validate Characteristics of a Method of Analysis , Official Methods of Analysis (current edition), AOAC INTERNATIONAL, Rockville, MD, USA. Available at: http://www.eoma.aoac.org/ app_d.pdf Appendix K: Guidelines for Dietary Supplements and Botanicals , Official Methods of Analysis (current edition), AOAC INTERNATIONAL, Rockville, MD, USA (http://www.eoma. aoac.org/app_k.pdf). Also at: J. AOAC Int. 95 , 268(2012); DOI: 10.5740/jaoacint.11-447 8 Maximum Time-to-Determination No maximum time. Approved by AOAC Stakeholder Panel on Dietary Supplements (SPDS). Final Version Date: September 25, 2015. Effective Date: September 25, 2015.
Table 1. Analytical range and LOQ based on matrix Parameter
Finished products Ingredients
Analytical range ppm a Limit of quantitation ppm a
0.5–12500
1250–12500
0.4 1000 a Measured as individual forms of vitamin D and pre-vitamin D.
Table 2. Method performance requirements as a function of range
Range, µg/g a
Parameter
<10–15 80–110
>15–50 90–107
>50–500 95–105
>500–4000
>4000–12500
Recovery, %
95–105
97–103
Repeatability (RSD r Reproducibility (RSD R ), %
8
7
5 8
4 6
3 4
), %
12
10
a Measured as individual forms of vitamin D and pre-vitamin D.
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