Fig. 4From: Trace element analysis of whole-rock glass beads of geological reference materials by Nd:YAG UV 213 nm LA-ICP-MSAnalytical results normalized to average recommended value. The error bar for each measured result represents one standard deviation. Dashed lines correspond to one standard deviation of reference values. Symbols: closed circles, data from low-dilution glass beads; open circles, data from normal-dilution glass beadsBack to article page