Determination of trace amounts of impurities in pharmaceutical preparations by differential-pulse polarography: Part 2. Determination of disodium bis(ethanesulphonato) disulphide in sodium 2-mercaptoethanesulphonate

Determination of trace amounts of impuri

Determination of trace amounts of impurities in pharmaceutical preparations by differential-pulse polarography: Part 1. Determination of diisooctyl maleate in the pharmaceutical sodium 1,4-bis(2-ethylhexyl)sulphosuccinate and of maleic acid in fumaric acid

✍ Walenty Szczepaniak; Maria Ren 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 301 KB

A dfierentlal-pulse polarographlc procedure IS described for the determmatlon of lmpuntles such as dusooctyl maleate and maleic acid m pharmaceutxal products The concentration range for dnsooctyl maleate IS 1 x 10-6-30 X 10m6 pg ml-' and the detection hnut IS 0 2 pg ml-', for maleic acid the detecti