Use of a certified reference material for extractable trace metals to assess sources of uncertainty in the BCR three-stage sequential extraction procedure
Sahuquillo, A ; López-Sánchez, J.F ; Rubio, R ; Rauret, G ; Thomas, R.P ; Davidson, C.M ; Ure, A.M
Analytica chimica acta, 1999-03, Vol.382 (3), p.317-327 [Periódico revisado por pares]Amsterdam: Elsevier B.V
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