A Compilation of Silicon, Rare Earth Element and Twenty‐One other Trace Element Concentrations in the Natural River Water Reference Material <scp>SLRS</scp>‐5 (<scp>NRC</scp>‐<scp>CNRC</scp>)

Abstract

The natural river water certified reference material SLRS ‐5 ( NRC ‐ CNRC ) was routinely analysed in this study for major and trace elements by ten French laboratories. Most of the measurements were made using ICP ‐ MS . Because no certified values are assigned by NRC ‐ CNRC for silicon and 35 trace element concentrations (rare earth elements, Ag, B, Bi, Cs, Ga, Ge, Li, Nb, P, Rb, Rh, Re, S, Sc, Sn, Th, Ti, Tl, W, Y and Zr), or for isotopic ratios, we provide a compilation of the concentrations and related uncertainties obtained by the participating laboratories. Strontium isotopic ratios are also given.