Заранее благодарна.
Joel Baker, Tod Waight, David Ulfbeck
Rapid and highly reproducible analysis of rare earth elements by multiple collector inductively coupled plasma mass spectrometry
Geochimica et Cosmochimica Acta
Volume 66, Issue 20, 15 October 2002, Pages 3635-3646
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http://dx.doi.org/10.1016/S0016-7037(02)00921-3