3.1.1. Vitamin D recovery
The mean recovery of vitamin D3 added to the Egg CC was 98.9%
with 4.8% relative standard deviation (RSD) and a range of 93.5–
106% for the 5 replicates. The mean assayed concentration of 25-
OH-D3 (n = 4) in the Egg CC was 0.516 mg/100 g (3.6% RSD) and the
recovery of 25-OH-D3 was 91% and 105% for the duplicate analysis
(mean, 97.5%).