USP Monographs: Povidone-Iodine - Pharmacopeia.cn
2014-9-5 · Determination of total iodine— Dissolve about 500 mg of Povidone-Iodine, accurately weighed, in 100 mL of water in a 250-mL conical flask. Add sodium bisulfite TS until the color of iodine has disappeared. Add 25.0 mL of 0.1 N silver nitrate VS and 10 mL of nitric acid, and mix. Titrate the excess silver nitrate with 0.1 N ammonium thiocyanate VS, using ferric ammonium sulfate TS as the ...
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