Nanometer-sized titanium dioxide micro-column on-line preconcentration of La, Y, Yb, Eu, Dy and their determination by inductively coupled plasma atomic emission spectrometry

Authors
Liang, P Hu, B Jiang, ZC Qin, YC Peng, TY
Citation
P. Liang et al., Nanometer-sized titanium dioxide micro-column on-line preconcentration of La, Y, Yb, Eu, Dy and their determination by inductively coupled plasma atomic emission spectrometry, J ANAL ATOM, 16(8), 2001, pp. 863-866
Citations number
25
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
ISSN journal
02679477 → ACNP
Volume
16
Issue
8
Year of publication
2001
Pages
863 - 866
Database
ISI
SICI code
0267-9477(200108)16:8<863:NTDMOP>2.0.ZU;2-H
Abstract
A new method using a micro-column packed with nanometer sized TiO2 as a sor bent has been developed for the on-line preconcentration of trace amounts o f rare earth elements (La, Y, Yb, Eu and Dy) prior to their determination b y inductively coupled plasma atomic emission spectrometry (ICP-AES). The ef fects of pH, sample flow rate and volume, elution solution and interfering ions on the separation of analytes have been investigated. The adsorption c apacity of nanometer TiO2 for La, Y, Yb, Eu and Dy was found to be 7.0, 6.1 , 9.8, 8.3 and 8.8 mg g(-1), respectively. The method has been successfully applied for the determination of trace rare earth elements in some environ mental samples.