CHARACTERIZATION OF MAJOR,MINOR AND TRACE ELEMENTS IN SIX CCRMP (TDB-1, WGB-1, UMT-1, WPR-1, WMG-1 AND WMS-1) AND ONE IWG (ZW-C) GEOCHEMICAL CANDIDATE REFERENCE MATERIALS*

Elemental compostions of six CCRMP (TDB-1, WGB-1, UMT-1, WPR-1, WMG-1 and WMS-1) and one IWG (ZW-C) geochemical candidate reference materials were determined by XRF, ICP-AES, ICP-MS, GFAAS and other modern instrumental techniques. Inter-method results compared favourably in the case of elements for which multiple data were available.