Determination and Speciation of Cd(II) and Pb(II) Ions Using Magnetic Solid Phase Extraction By Flame Atomic Absorption Spectroscopy

Abstract

In this study, Pb(II) and Cd(II) ions were determined by Fe3O4@G2/Npht magnetic dendrimers using the solid-phase extraction (SPE) method by flame atomic absorption spectrophotometer (FAAS). The morphological and chemical properties of magnetic dendrimers were investigated using Fourier Transform Infrared (FTIR) spectroscopy and transmission electron microscopy (TEM) techniques. The magnetic characteristics of the ferromagnetic features of the magnetic nanocomposites were validated by vibrating sample magnetometry (VSM). The heavy metal ion recovery was assessed via flame atomic adsorption spectroscopy (FAAS). To ascertain the ideal adsorption system conditions, the effects of various parameters, including pH, adsorbent dose, adsorbent time, eluent type and amount, etc., were examined. Optimum conditions for heavy metal recovery using Fe3O4@G2/Npht magnetic dendrimer were determined as pH 6.5, 1M HNO3 and 100 mg for Pb(II) and pH 7.5, 1 M HNO3 and 100 mg for Cd(II). The novel material of Fe3O4@G2/Npht magnetic dendrimer for separation and pre-concentration of Pb(II) and Cd(II) was used to natural water.

Keywords

• Magnetic dendrimers
• FAAS
• SPE
• Cd(II)
• Pb(II)

Alevli Atomik Absorpsiyon Spektroskopisi ile Manyetik Katı Faz Ekstraksiyonu Kullanılarak Cd(II) ve Pb(II) İyonlarının Tayini ve Türlendirilmesi

Abstract

Bu çalışmada, Pb(II) ve Cd(II) iyonları Fe3O4@G2/Npht manyetik dendrimerler ile katı faz ekstraksiyon (SPE) yöntemi kullanılarak alevli atomik absorpsiyon spektrofotometresi (AAS) ile tayin edilmiştir. Manyetik dendrimerlerin morfolojik ve kimyasal özellikleri Fourier Transform Infrared (FTIR) spektroskopisi ve transmisyon elektron mikroskobu (TEM) teknikleri kullanılarak incelenmiştir. Manyetik nanokompozitlerin ferromanyetik özelliklerinin manyetik karakteristikleri titreşimli numune manyetometrisi (VSM) ile doğrulanmıştır. Ağır metal iyonlarının geri kazanımı alevli atomik adsorpsiyon spektroskopisi (AAS) ile değerlendirilmiştir. İdeal adsorpsiyon sistemi koşullarını belirlemek için pH, adsorban dozu, adsorban süresi, eluent türü ve miktarı gibi çeşitli parametrelerin etkileri incelenmiştir. Fe3O4@G2/Npht manyetik dendrimer kullanılarak ağır metal geri kazanımı için optimum koşullar Pb(II) için pH 6,5, 1M HNO3 ve 100 mg, Cd(II) için pH 6,5, 1 M HNO3 ve 100 mg olarak belirlenmiştir. Pb(II) ve Cd(II)'nin ayrılması ve ön konsantrasyonu için Fe3O4@G2/Npht manyetik dendrimerden oluşan yeni malzeme doğal suda kullanılmıştır

Keywords

• Manyetik dendrimerler
• SPE
• AAS
• Cd(II)
• Pb(II)

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