Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4087
Title: Preconcentration and atomic spectrometric determination of rare earth elements (REEs) in natural water samples by inductively coupled plasma atomic emission spectrometry
Authors: Pasinli, Türker
Eroğlu, Ahmet Emin
Shahwan, Talal
Keywords: Rare earth element
Inductively coupled plasma atomic emission spectrometry (ICP-AES)
Preconcentration
Clinoptilolite
Zeolite Y
Chelex 100
Publisher: Elsevier Ltd.
Source: Pasinli, T., Eroğlu, Ahmet E., & Shahwan, T. (2005). Preconcentration and atomic spectrometric determination of rare earth elements (REEs) in natural water samples by inductively coupled plasma atomic emission spectrometry. Analytica Chimica Acta, 547(1), 42–49. doi:10.1016/j.aca.2005.04.076
Abstract: The usage of a variety of sorbents has been shown as promising matrix removal/preconcentration strategies for the determination of rare earth elements (REEs) in various natural water samples by inductively coupled plasma atomic emission spectrometry (ICP-AES). The sorption efficiency of various zeolites (clinoptilolite, mordenite, zeolite Y, zeolite Beta), ion-exchangers (Amberlite CG-120, Amberlite IR-120, Rexyn 101, Dowex 50W X18) and chelating resins (Muromac, Chelex 100, Amberlite IRC-718) towards REEs was investigated in terms of solution pH, shaking time and sorbent amount. The results have shown that most of the materials can take up REEs at a wide pH range. The experiments were continued with clinoptilolite, zeolite Y and Chelex 100 and it was demonstrated that all three materials displayed very fast kinetics for REE sorption (higher than 96% in 1 min). Desorption from the sorbents was realized with 2.0 M HNO3 for clinoptilolite and 0.1 M HNO3 for zeolite Y and Chelex 100. Only the lower concentration range (0.01–2.0 mg l−1) of matrix-matched standards were used in quantitation although the calibration graphs were linear at least up to 10.0 mg l−1 for all REEs studied. The limit of detection (3 s) without preconcentration was 0.1, 1.0, and 0.2 μg l−1 for Eu, La, and Yb, respectively. The validity of the method with the selected sorbents was checked through spike recovery experiments.
URI: http://doi.org/10.1016/j.aca.2005.04.076
http://hdl.handle.net/11147/4087
ISSN: 0003-2670
0003-2670
1873-4324
Appears in Collections:Chemistry / Kimya
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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