Katı Faz Ekstraksiyonu ile Bakır ve Nikelin Önderiştirilmesinde ONNO ve ONO Tipi Schiff Bazlarının Karşılaştırılması

Year 2014, Volume: 9 Issue: 1, 176 - 185, 15.07.2014

Fadime Nazlı Dinçer Kaya , Orhan Atakol Selda Doğan

Abstract

Özet: Çalışmada, ONO tipi, üç dişli (N-(2'-hidroksifenil)-2-hidroksi-1-naftaldimin) ve ONNO tipi, dört dişli (Bis-N,N'-(2-hidroksi-1-naftiliden)-1,3-propandiamin) Schiff bazları silika jel üzerine adsorbe edilerek katı faz ekstraksiyonunda kullanılmak üzere iki adsorban materyali hazırlandı ve bu adsorban materyalleri Cu2+ ve Ni2+ iyonlarının önderiştirilmesi için incelendi. Her bir iyon için pH, akış hızı, elüent tipi ve girişim yapan türlerin etkileri incelendi. Cu2+ ve Ni2+ derişimleri alevli atomik absorpsiyon spetroskopisi ile tayin edildi. Çalışma en uygun pH'ın seçilmesi için pH 2-9 arasında gerçekleştirildi. Geri kazanma oranları ONNO tipi Schiff bazı için, 5 'den daha büyük pH'larda % 90'ın üzerinde bulundu. ONO tipi Schiff bazında ise bu oranın bu oranın % 90'ın altında kaldığı görüldü. Cu2+ için gözlenebilme sınırı 0,008 µg/mL, alt tayin sınırı 0,024 µg/mL, Ni2+ için gözlenebilme sınırı 0,016 µg/mL, alt tayin sınırı 0,048 µg/mL olarak bulundu. Yöntemin doğruluğu CRM BCR-397 insan saçı ve NIST 2976 midye dokusu sertifikalı referans standart maddeleri ile kontrol edildi.

Anahtar kelimeler: Schiff bazı, katı faz ekstraksiyonu, bakır, nikel, önderiştirme

Keywords

Schiff bazı, katı faz ekstraksiyonu, bakır, nikel, önderiştirme

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