Semra MURATOĞLU, H. Elif KORMALI ERTÜRÜN, Ayça DEMİREL ÖZEL

Paladyum Komplekslerine Dayalı İyodür-Seçici Karbon Pasta Elektrot Hazırlanması

Dibromo[1,1′-bis(difenilfosfin)ferrosen] paladyum(II) (iyonofor I) ve dikloro[1,1′-bis(difenilfosfin)ferrosen] paladyum(II) (iyonofor II) olarak adlandırılan paladyum komplekslerinin kullanıldığı yeni iyodür-seçici karbon pasta elektrotlar hazırlandı. İyonofor I ve II kullanılarak optimum karbon pasta bileşimiyle hazırlanan elektrotların pH 4,0’da sırasıyla −43,2 ± 0,6 mV/pI ve −43,8 ± 0,6 mV/pI eğimle, 3,5×10−6 M ve 3,7×10−7 M gözlenebilme sınırıyla, 1,0×10−5 − 1,0×10−1 M ve 1,0×10−6 − 1,0×10−1 M derişim aralığında doğrusal cevap verdikleri gözlendi. Önerilen elektrotların kısa cevap sürelerine, 3 aylık ömre, iyi bir tekrarlanabilirlik ve üretilebilirliğe sahip oldukları bulundu. Ayrıca, elektrotlar, iyodür içeren ilaç numunelerinde iyodürün potansiyometrik tayini için indikatör elektrot olarak başarılı bir şekilde kullanıldı.

Anahtar Kelimeler:

Karbon pasta elektrot, İyodür-seçici elektrot; Potansiyometri; Paladyum kompleksleri

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