Division 6 Calculation of the results
United Kingdom
From the mean height (area) of the vitamin A peaks of the sample solution determine the concentration of the sample solution in IU/ml by reference to the calibration graph (5.6.2).
The vitamin A content w in IU/kg of the sample is given by the following formula:
[IU/kg]
in which:
c
vitamin A concentration of the sample solution (5.4) in IU/ml
volume of sample solution (5.4) in ml
volume of aliquot taken in 5.4 in ml
weight of the test portion in g