Batch and FIA Spectrophotometric Determination of Sodium and Potassium Ions via Reaction with Sulfophthalein Derivatized Crown Ethers

Indirect spectrophotometric determinatio

Indirect spectrophotometric determination of potassium ion in water based on the precipitation with tetraphenylborate ion and a crown ether using flow injection

✍ Shoji Motomizu; Ko Yoshida; Kyoji Tôei 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 552 KB

A preclpltatlon reaction for alkah metal Ions IS proposed Crown ether complexes of alkah metal 1011s were found to be less soluble than the alkah metal Ions themselves m water when they form Ion assoclatlon complexes with tetraphenylborate Ion (TPB-) as a counter Ion The apparent solubdlty products