Certified reference materials — beech leaves and spruce needles —for the quality control in monitoring damage in forests by acid deposition

作者: E. A. Maier , H. Muntau , B. Griepink

DOI: 10.1007/BF01204097

关键词:

摘要: The chemical determination of various elements in leaves or needles allows to establish the damage caused by acid deposition. To control quality such determinations Community Bureau Reference (BCR) produced two Certified Materials: Beech (CRM No. 100) and Spruce 101). After a careful preparation procedure, homogeneity study long term stability study, materials were certified for: Cl, N, P S CRM 100, Al, Ca, Mg, Mn, P, Zn 101. Indicative values on content 19 majors trace are also reported.

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