Selenite-selective membrane electrodes based on ion exchangers and application to anodic slime

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Ekmekci G., Somer G.

ANALYTICAL SCIENCES, cilt.16, sa.3, ss.307-311, 2000 (SCI-Expanded, Scopus)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 16 Sayı: 3
• Basım Tarihi: 2000
• Doi Numarası: 10.2116/analsci.16.307
• Dergi Adı: ANALYTICAL SCIENCES
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Sayfa Sayıları: ss.307-311
• Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
• Gazi Üniversitesi Adresli: Evet

Özet

A new membrane selenite selective electrode has been developed. The electrode consisted of 4% ion exchanger, QAD 86 PI (dialkyldimethylammonium chloride), as the active material, and 96% SR as the membrane matrix. An analytically useful potential change occurs from 10(-6) - 10(-1) M selenite ion. The slope of the linear portion is 19 mV/10 fold change in selenite concentration. No interference was observed for SO42-, SO32-, S-2, HPO42-, Cl-, Br- and I- ions. The lifetime of the electrode was about three months. This electrode has been used for the determination of selenium in anodic slime at pH 8 (ammonia buffer) using standard addition method.