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Search Publications by: Maria Isabel Vega Martinez (IntlAssoc)

Displaying 1 - 2 of 2

Certification of Standard Reference Material(R) 2693a Bituminous Coal (Nominal Mass Fraction 0.5 % Sulfur)

January 25, 2024

Author(s)

Thomas W. Vetter, Colleen E. Bryan Sallee, Brian Lang, Anthony F. Marlow, Jennifer Ness, Rick L. Paul, Adam L. Pintar, Bruce Scruggs, Nicholas Sharp, Maria Isabel Vega Martinez, John Sieber

Standard Reference Material (SRM) 2693a Bituminous Coal (Nominal Mass Fraction 0.5 % Sulfur) is intended for use in the evaluation of techniques employed in the determination of sulfur, mercury, chlorine, and ash in coal and materials of a similar matrix

Certification of Standard Reference Material(R) 1568c Rice Flour

July 29, 2022

Author(s)

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 arsenic species. This material is intended to be used for the evaluation of methods for the