Major And Trace Element Determinations On Nist Glass Standard Reference Materials 611, 612, 614 And 1834 By Inductively Coupled Plasma-Mass Spectrometry

The authors in this article report on the major and trace element composition and homogeneity of NIST (National Institute of Standards and Technology) glass standard reference materials 611, 612, 614 and 1834 for use as microanalytical trace element standards in laser ablation-inductively coupled plasma-mass spectrometry. The four analyzed NIST glasses were not designed as microanalytical standards, but their availability and careful preparation made them obvious candidates. The data indicate that NIST 1834 is inhomogenous on a scale of 100mg with respect to several trace elements. Within analytical uncertainty, NIST 611, 612 and 614 are apparently homogeneous.