F. Backhaus et al., 2 SPRUCE SHOOT CANDIDATE REFERENCE MATERIALS FROM THE GERMAN-ENVIRONMENTAL-SPECIMEN-BANK, Science of the total environment, 140, 1993, pp. 447-458
Two new materials are introduced that might serve as useful aids for t
he harmonisation of analytical results. Spruce shoots, cryogenically h
omogenized and characterized for 50 elements from two sampling sites o
f the German Environmental Specimen Bank (ESB) are presented as possib
le third generation reference materials that might also act as calibra
ting materials in speciation analysis.