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

Kırklareli Üniversitesi Mühendislik ve Fen Bilimleri Dergisi Pub Date : 2023-12-09 DOI:10.34186/klujes.1380247

Nurdan KURNAZ YETİM, Elvan HASANOĞLU ÖZKAN, Nihat Akkurt, Cemil Özcan

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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.

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利用磁性固相萃取和火焰原子吸收光谱法测定镉（II）和铅（II）离子及其种类

本研究利用火焰原子吸收分光光度计（FAAS），采用固相萃取（SPE）法，用 Fe3O4@G2/Npht 磁性树枝状聚合物测定了铅（II）和镉（II）离子。利用傅立叶变换红外光谱（FTIR）和透射电子显微镜（TEM）技术研究了磁性树枝状聚合物的形态和化学特性。磁性纳米复合材料的铁磁性特征通过振动样品磁力计（VSM）进行了验证。重金属离子回收率通过火焰原子吸附光谱（FAAS）进行了评估。为了确定理想的吸附系统条件，研究了各种参数的影响，包括 pH 值、吸附剂剂量、吸附时间、洗脱剂类型和用量等。使用 Fe3O4@G2/Npht 磁性树枝状聚合物回收重金属的最佳条件被确定为：pH 值 6.5、1M HNO3 和 100 毫克（铅(II)）；pH 值 7.5、1M HNO3 和 100 毫克（镉(II)）。该新型 Fe3O4@G2/Npht 磁性树枝状聚合物材料可用于天然水中铅(II)和镉(II)的分离和预浓缩。

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Kırklareli Üniversitesi Mühendislik ve Fen Bilimleri Dergisi

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