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John L Molloy (Fed)

John's main focus while at NIST has been the study of sample heterogeneity at small mass levels. He has pursued this topic in an effort to develop a method for NIST to certify SRMs at sample sizes within the low milligram and microgram mass regimes. Another program he is involved in concerns development of reference materials to help quantify Pb levels in paint in children's products. He has also developed software using Visual Basic to facilitate mixing of Fossil Fuel SRMs. John has used a wide variety of analysis techniques at NIST including µXRF, WDXRF, ICPOES, ICPMS, and INAA.

Awards and Accomplishments

  • United States Patent Number 8,742,334 "Spinning Cell Device for Fast Standardization in Laser Ablation Inductively Coupled Plasma Spectrometry", 2014
  • Federation of Analytical Chemistry and Spectroscopy Societies Student Poster Award, 2005
  • Welch Professional Development Award, 2005
  • American Institute of Chemical Engineers Award, 2001

Membership and Professional Activities

  • ASTM International Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants


Metrological Tools for the Reference Materials and Reference Instruments of the NIST Material Measurement Laboratory

Carlos R. Beauchamp, Johanna Camara, Jennifer Carney, Steven J. Choquette, Kenneth D. Cole, Paul C. DeRose, David L. Duewer, Michael Epstein, Margaret Kline, Katrice Lippa, Enrico Lucon, John L. Molloy, Michael Nelson, Karen W. Phinney, Maria Polakoski, Antonio Possolo, Lane C. Sander, John E. Schiel, Katherine E. Sharpless, Michael R. Winchester, Donald Windover
The National Institute of Standards and Technology (NIST), formerly the National Bureau of Standards, was established by the U.S. Congress in 1901 and charged

CCQM-K143 Comparison of Copper Calibration Solutions Prepared by NMIs/DIs

John L. Molloy, Michael R. Winchester, Therese A. Butler, Olaf Rienitz, Volker Goerlitz, Anita Roethke, Volker Goerlitz, Rodrigo Caciano de Sena, Lu Yang, Kenny Nadeau, Patricia R. Arancibia, Wu Bing, Zhou Tao, James Snell, Jochen Vogl, Maren Koenig, R. K. Kotnala, S. Swarupa Tripathy, Christine Elishian, Rosi Ketrin, Toshihiro Suzuki, Tom Oduor Okumu, Yong-Hyeon Yim, Judith Velina Lara Manzano, Mirella Buzoianu, Alena Sobina, Veniamin Zyskin, Egor Sobina, Pavel Migal, Mare Linsky, Suleyman Z. Can, Betul Ari, Heidi Goenaga Infante
CCQM-K143 is a key comparison that assesses participants' ability to prepare single element calibration solutions. Preparing calibration solutions properly is
Created August 27, 2019, Updated December 8, 2022