- 作者: Mohammad Reza Ganjalia*, Vahideh Akbara, Azadeh Daftaria, Parviz Norouzia, Hooshang Pirelahia, Arash Mouradzadegunb
- 作者服務機構: Department of Chemistry, Tehran University, Tehran, Iran
- 中文摘要: A highly selective PVC-membrane electrode based on 2,6-diphenylpyrylium fluoroborate is presented. The electrode reveals a Nernstian potentiometric response for sulfate ion over a wide concentration range (5.0 × 10-6-1.0 × 10-1 M). The electrode has a response time of about 10 s and can be used for at least 2 months without any divergence. The proposed sensor revealed very good selectivities for sulfate over a wide variety of common organic and inorganic anions and could be used over a wide pH range (2.5-9.5). The detection limit of the sensor is 3.0 × 10-6 M. It was successfully applied to the direct determination of salbutamol, paramomycin tablets, and as an indicator electrode for potentiometric titration of sulfate ions with barium ions.
- 英文摘要: --
- 中文關鍵字: Potentiometry; PVC; Sulfate; Sensor; 2,6-Diphenylpyrylum fluoroborate.
- 英文關鍵字: --