Pekmez toprağında halojen ve kükürt iyonlarının iyon kromatografisi ile tayini

Yıl 2023, Cilt: 4 Sayı: 1, 7 - 13, 26.05.2023

Şükrü Kalaycı

Öz

Doğal ve çevresel numunelerde halojen ve kükürt miktarlarının analizi önemlidir, ancak tayin için kullanılan yöntemlerin sayısı sınırlıdır. Bu çalışmada pekmez toprağı örneğinde bulunan halojenlerin ve kükürt iyonun tayininde iyon kromatografisi kullanılmıştır. Yöntemin validasyonu gerçekleştirildi. Numune çözünürleştirildi. Örneklere 0,1 mmol L-1 KOH eklendiği zaman, geri kazanımlar tüm iyonlar için %95 ile %99 arasındaydı. Yöntem, Nevşehir'in Göreme ilçesinden getirilen pekmez toprağı örneğine uygulandı. Pekmez toprağı numunesindeki miktarlar 12,6 ± 0,3 (F), 65,8 ± 2,4 (Cl), 152,3 ± 3,5 (S), 3,2 ± 0,3 (Br), 17,6 ± 0,6 mg g-1 (I) olarak ölçülmüştür. F, Cl, S, Br, I için LOQ'lar sırasıyla 0,46; 0,85; 1,0; 0,92 ve 0,91 mg g-1 idi. Her iyonun seçici elektrotu ile aynı numune de analizler yapılmış ve sonuçların uyumlu olduğu görülmüştür.

Anahtar Kelimeler

Pekmez toprağı, Halojenler, Sülfür, İyon kromatografisi, İyon seçici elektrotlar

Kaynakça

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