Packaging and storage
Preserve in well-closed containers protected from light, and store in a cool, dry place.
Label the Oral Solution in terms of zinc sulfate (ZnSO4·H2O) and in terms of elemental zinc.
Transfer to a 250-mL flask an accurately measured volume of Oral Solution, equivalent to about 99 mg of ZnSO4
O. Add 50 mL of water and 10 mL of ammoniaammonium chloride buffer TS and 0.3 mL of eriochrome black TS
, and titrate with 0.05 M edetate disodium VS to a green endpoint. Each mL of 0.05 M edetate disodium is equivalent to 8.973 mg of zinc sulfate (ZnSO4
: Lawrence Evans, III, Ph.D., Scientist
Expert Committee : (DSN05) Dietary Supplements - Non-Botanicals
USP29NF24 Page 2293
: Volume No. 31(2) Page 468
Phone Number : 1-301-816-8389