Assay
Dilute an accurately measured volume of not less than 1 mL of Injection to make a solution containing approximately 0.1 µg of riboflavin per mL. Using this as the
Assay Preparation, proceed as directed under
Riboflavin Assay 481. Calculate the quantity, in mg, of C
17H
20N
4O
6 in each mL of the Injection taken by the formula:
C(A / B),
in which
C is the concentration, in mg per mL, of C
17H
20N
4O
6 obtained for the
Assay Preparation,
A is the test specimen dilution volume, in mL, and
B is the volume, in mL, of Injection taken.