Cadion ile birlikte çöktürmeden sonra Fe, Cr, Pb eser elementlerinin atomik absorpsiyon spektrometresiyle tayini

Yıl 2015, Cilt: 31 Sayı: 3, 179 - 184, 01.06.2015

İshak Afşin Kariper

Öz

Bu çalışma cadion ile birlikte çöktürülen Fe, Pb ve Cr un AAS de tayinini üzerinedir. Metot üzerine cadionun miktarı, örnek hacmi, matriks etkisi ve bekleme süresi gibi birçok etkinin analit iyonlarının geri kazanımına olan etkileri incelenmiştir. Hatta santirifüjleme süreleri bile incelenmiştir. Pb, Fe ve Cr için tayin sınırları 0.300, 0.090, 0.060 mgL-1 olarak belirlenmiştir. Metot, gerçek örneklere, musluk suyuna, doğal ve krater göllerinden alınan örnek sulara da uygulanmıştır.Aynı zamanda metot referans madde ile de test edilmiştir. Standart sapmalar % 5 in altında çıkarken geri kazanımlar % 95 in üzerindeydi.

Anahtar Kelimeler

Kadyon, Birlikte Çöktürme, Atomik absorpsiyon spektroskobisi

Determination of Fe, Cr, Pb trace elements by atomic absorption spectrometry after co precipitation with Cadion

Öz

This paper describes a method to determine the trace amounts of iron (III), lead (II) and chromium (III), where atomic absorption spectrometry with cadion coprecipitation is used. We examined the effects of analytical parameters such as the amount of cadion, sample volume, matrix effect and waiting time before and after centrifugation, etc. in the recovery of analyte ions. The effect of centrifuge time was also examined. The detection limits for Pb, Fe, Cr were 0.300, 0.090, 0.060 mgL-1 respectively. Validation of the presented coprecipitation method was performed via analysis by means of using standard reference materials. The method was applied to determine the degree of analytes present in real samples, including tap water collected form a lake, a Crater Lake and dam in Kayseri and Sivas. The standard deviations and recoveries were found to be <5% and >95 % respectively.

Anahtar Kelimeler

Cadion, coprecipitation, atomic absorption spectrometry

Kaynakça

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