Caesium ion-selective electrode based on 15-crown-5-phosphotungstic acid precipitates

摘要: A caesium ion-selective PVC membrane electrode based on 15-crown-5-phosphotungstic acid (PW) precipitates as the neutral carrier was prepared. The gave a linear response with Nernstian slope of 60 mv decade–1 within concentration range 10–1–10–4M CsNO3. selectivity and time were investigated it found that exhibited good for in comparison alkali, alkaline earth some transition metal ions. effects pH, addition ethanol anions present test solutions also studied.