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On-line-sorption preconcentration and inductively coupled plasma atomic emission spectrometry determination of rare earth elements
Institution:1. Chemistry Department, Analytical Chemistry Division, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia;2. Geological Institute of the Russian Academy of Sciences, Pyzhevsky lane 7, 119017 Moscow, Russia;3. Institute of the Earth''s Crust, SB RAS, Lermontov St., 128, Irkutsk, 664033, Russia;4. A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilova Street, 119991 Moscow, Russia;5. Chemistry Department, Physical Chemistry Division, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia;6. Institute for Spectroscopy, Russian Academy of Sciences, 5 Fizicheskaya Street, 142190, Moscow, Troitsk, Russia;1. Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal 576104, India;2. Centre for Applied Nanosciences, Manipal Academy of Higher Education, Manipal 576104, India;3. Centre of Excellence for Biophotonics, Manipal Academy of Higher Education, Manipal 576104, India
Abstract:The system for on-line microcolumn sorption preconcentration and inductively coupled plasma atomic emission spectrometry determination of 14 rare earth elements (REEs) is described. Aminocarboxylic sorbents of different structure are used. Preconcentration of REEs from the 20 ml of sample solution and elution with 210 μl of 1 mol l?1 HCl results in an enrichment factor of 99. The detection limit of REEs is about n × 0.1 μg l?1 (RSD 3–5%). The possibility of simultaneous REE determination in complicated solutions is demonstrated.
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