Vintage MAVRO Series of Spectrophotometric Calibration Artifacts

October 2, 2005

Application Notebook

Application Notebook, Application Notebook-10-02-2005, Volume 0, Issue 0

Stranaska LLC

A commemorative series of spectrophotometric calibration artifacts has been developed in tribute to Dr. Radu Mavrodineanu, the "founding father" of the contemporary NIST high-accuracy spectrophotometry program.

Molecular absorption spectrophotometry is a vital tool in analytical research, quality control, and manufacturing-support laboratories. The assurance of accurate spectrophotometric data relies on various validation measures including science-based procedures to demonstrate that the spectrophoto-meter is functioning properly and within specification for its intended use. Primary spectrophotometric Standard Reference Material (SRM) artifacts from the National Institute of Standards and Technology (NIST) serve as the traditional benchmark for this purpose. Additionally, these SRM artifacts provide the primary means of traceability linkage for secondary spectrophotometric artifacts produced by commercial suppliers.

Historical Background

The current array of primary spectrophotometric SRMs is an extension of the high-accuracy spectrophotometry program that originated in 1969 within the Center for Analytical Chemistry of NIST, known at that time as the National Bureau of Standards (NBS). For more than 25 years, the overall success of this program can be attributed to the technical vision, leadership, and pioneering accomplishments of Dr. Radu Mavrodineanu, a renowned analytical spectroscopist and scientist (1). Included among his many valuable contributions to this program are the original SRMs developed for wavelength accuracy, transmittance and absorbance accuracy, and stray radiant energy in the ultraviolet (UV) and visible (VIS) regions of the electromagnetic spectrum.

Vintage MAVRO Series

To continue the legacy of Dr. Mavrodineanu, or Mavro, as he was known to many of his close friends and colleagues, Stranaska is proud to introduce its new Vintage MAVRO Series. This commemorative series is an integral part of the company's expanding product line of secondary calibration artifacts for analytical metrology (CA2M). Produced on demand and in limited quantities only, the Vintage MAVRO Series is comprised of the company's top ten CA2M products for the definitive calibration of UV/VIS absorption spectrophotometers. Included in the series are eight photometric artifacts, one wavelength artifact, and one stray radiant energy artifact; the eight photometric artifacts are subdivided into five solid CA2M artifacts and three liquid CA2M artifacts. Each of the ten secondary CA2M products comprising the Vintage MAVRO Series is meticulously patterned after or derived from a corresponding primary spectrophotometric NIST SRM artifact (see Table I).

Table I. Vintage MAVRO Series of Spectrophotometric Calibration Artifacts

Reference

(1) J. Messman, "Historical Review of Standard Reference Materials for Analytical Spectrophotometry – A Tribute to Dr. Radu Mavrodineanu," Poster Paper Number 1 presented at Federation of Analytical Chemistry & Spectroscopy Societies 30th Annual Meeting, Fort Lauderdale, Florida, 19 October 2003.

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