Overview of primary reference materials for molecular absorption spectrophotometry in the United States

Jerry D. Messman

doi:10.1117/12.514489

8 August 2003 Overview of primary reference materials for molecular absorption spectrophotometry in the United States

Jerry D. Messman

Proceedings Volume 4826, Fourth Oxford Conference on Spectroscopy; (2003) https://doi.org/10.1117/12.514489
Event: Fourth Oxford Conference on Spectroscopy, 2002, Davidson, NC, United States

Abstract

Primary spectrophotometric Standard Reference Materials (SRMs) from the National Institute of Standards and Technology (NIST) are transfer artifact standards of the highest order in the United States. They are indispensable to spectrophotometer manufacturers for establishing instrument specifications and also to commercial spectrometrology companies for certified value assignment and benchmarking of secondary reference materials. When used judiciously, primary SRMs represent a pivotal link in the measurement traceability chain, and they facilitate quantitative assessment of measurement uncertainty for calibrations of metrological value. This paper provides a concise summary of the contemporary array of primary SRMs for molecular absorption spectrophotometry that can be used to leverage measurement accuracy and traceability to data and results for spectrophotometer operation within the spectral range 235 nm to 805 nm. An introductory benchmark traceability paradigm and a preliminary needs assessment for spectrophotometric SRMs are also presented.

Citation Download Citation

Jerry D. Messman "Overview of primary reference materials for molecular absorption spectrophotometry in the United States", Proc. SPIE 4826, Fourth Oxford Conference on Spectroscopy, (8 August 2003); https://doi.org/10.1117/12.514489

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