S. V. Panteeva, D. P. Gladkochoub, T. V. Donskaya, V. V. Markova, G. P. Sandimirova
Determination of 24 trace elements in felsic rocks by inductively coupled plasma mass spectrometry after lithium metaborate fusion
Spectrochimica Acta Part B: Atomic Spectroscopy Volume 58, Issue 2, 3 February 2003, Pages 341-350
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http://dx.doi.org/10.1016/S0584-8547(02)00151-9