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John L Molloy

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


Modeling and Measuring Chloride Ingress into Cracked Mortar

Scott Z. Jones, Jeffery Davis, John L. Molloy, John R. Sieber, Dale P. Bentz
Chloride ingress into reinforced concrete structures is responsible for initiating corrosion of steel embedded into concrete. To aide in the prediction of
Created August 27, 2019