Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Rick L. Paul (Fed)

Rick has been actively involved with the cold neutron prompt gamma-ray analysis (PGAA) instrument at the NIST Center for Neutron Research since 1991 and has contributed significantly to the upgrade of this instrument. He participated significantly in the development and certification of hydrogen in Ti alloy SRMs for the aircraft industry. He has worked with users of the PGAA facility from industry, academia, and government on the analysis of hydrogen, boron, and other elements in a wide variety of materials. He is currently involved in the planning and building of a new cold neutron PGAA facility at the NCNR as well as on the development and analysis of materials for hydrogen storage. Rick has also been actively involved in radiochemical neutron activation analysis (RNAA), working on the development of procedures for measuring phosphorus, sulfur, nitrogen, and arsenic at mg/kg levels and lower. He was instrumental in the development and certification of a phosphorus implant in silicon implant SRM for the semiconductor industry. More recently he has been involved in the certification of more than 25 elements in soils, coals, and flyash by instrumental neutron activation analysis (INAA). He has authored or co-authored more than 70 peer-reviewed publications describing these activities.


  • Outstanding Chemistry Major, 1978, 1980, 1981.
  • David Ross Fellowship
  • Phi Lambda Upsilon
  • Cover feature article for The Analyst: Rick L. Paul, "Hydrogen Measurement by Prompt Gamma-ray Activation Analysis: A Review", The Analyst, 122 (3) (1997) 35R – 41R.
  • CSTL Technical Achievement Award Nominee

Membership and Professional Activities:

  • American Chemical Society
  • American Nuclear Society
  • Materials Research Society
  • Analytical Chemistry Division Safety Committee, 2000 – 2003
  • Washington Editorial Review Board
    - Analytical Chemistry Division Sponsor – 2007 to present


Certification of Standard Reference Material® 2386 Avocado Powder

Melissa M. Phillips, Laura Wood, Joseph Browning, George Caceres, Grace Hahm, Mahboubeh Hanaee, Abigail Lee, Karen Murphy, Rabia Oflaz, Rick L. Paul, Benjamin Place, Jeanice "Brown Thomas ", James H. Yen
The National Institute of Standards and Technology (NIST) recently released SRM 2386 Avocado Powder which has value assignment for over 70 analytes. This

Certification of Standard Reference Material® 1568c Rice Flour

Chuck Barber, Colleen E. Bryan Sallee, Monique Johnson, Shaun Kotoski, Rick L. Paul, Nicholas Sharp, Maria Isabel Vega Martinez, James H. Yen, Lee L. Yu, Laura Wood, John Sieber, Stephen Long
The National Institute of Standards and Technology (NIST) recently released SRM 1568c Rice Flour which has value assignments for over 30 analytes, including
Created October 9, 2019, Updated December 8, 2022