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NIST Authors in Bold

Displaying 1 - 25 of 1929

Methods for the SI Value Assignment of the Purity of Organic Compounds (IUPAC Technical Report)

January 18, 2023
Author(s)
David L. Duewer, Katrice Lippa, Brian Lang, Blaza Toman, Michael Nelson, Kenneth W. Pratt, Steven Westwood, Yoshitaka Yoshitaka Shimuzu, Takeshi Saito, Beatrice Lalerle, Xinhua Dai, Stephen Davies, Marina Ricci, Annarita Baldan, Stefan Sarge, Haifeng Wang, Ralf D. Josephs, Michal Mariassy, Dietmar Pfieffer, John Warren, Wolfram Bremser, Stephen L.R. Ellison, Ting Huang, Ales Fajgelj, Lindsey Mackay, Robert Wielgosz
Metrological traceability to the SI of the result of an analysis for an organic compound is achieved through a calibration hierarchy anchored in a primary calibrator of the compound, the mass fraction content of which is established in a manner traceable

Value Assignment of Standard Reference Material(R) 1849b Infant/Adult Nutritional Formula I

January 6, 2023
Author(s)
Melissa M. Phillips, Laura Wood, Charles Barber, Bruce Scruggs, John Sieber, James H. Yen, Lee L. Yu
The National Institute of Standards and Technology (NIST) Standard Reference Material® (SRM®) 1849b Infant/Adult Nutritional Formula I delivers certified or non-certified values for over 100 analytes. This material is intended to be used for the evaluation

Field-Deployable Devices

January 1, 2023
Author(s)
Thomas P. Forbes, Raychelle Burks
Reductions in instrument size, weight, and power continue to facilitate the development and application of field-deployable devices for investigative purposes. Portable analytical instrumentation supporting the rapid and reliable identification of two

Cannabis Quality Assurance Program: Exercise 2 Toxic Elements Final Report

December 15, 2022
Author(s)
Chuck Barber, Colleen E. Bryan Sallee, Carolyn Burdette, Shaun Kotoski, Melissa M. Phillips, Walter Brent Wilson, Laura Wood
In 2020, NIST launched CannaQAP to improve the comparability of the analytical measurements of cannabis and cannabis-derived products in forensic and cannabis (hemp and marijuana) testing laboratories. CannaQAP is an interlaboratory study mechanism that is

Summary Report: Strategic Workshop on Management of PFAS in the Environment

November 30, 2022
Author(s)
Andrea Leeson, David Adamson, Lisa Alvarez-Cohen, Hunter Anderson, Frank Barranco, Christopher Bellona, Jens Blotevogel, Mark Brusseau, Michelle Crimi, Brian Crone, Rula Deeb, Dominic Di Toro, Craig Divine, Jennifer Field, Rajat Ghosh, Philip Gschwend, Jennifer Guelfo, Paul Hatzinger, Damian Helbling, Heather Henry, Christopher Higgins, Peter Jaffe, Detlef Knappe, Paul Koster van Groos, Linda Lee, Jinxia Liu, Shaily Mahendra, Carrie McDonough, Selma Mededovic, Marc Mills, Charles Newell, Carla Ng, Dung (Zoom) Nguyen, Bonnie Packer, Cara Patton, Graham Peaslee, Kurt Pennell, Jovan Popovic, Philip Potter, Joseph Quinnan, Maya Rabinowitz, Jessica L. Reiner, Stephen Richardson, Charles Schaefer, David Sedlak, Erin Shields, Jason Speicher, Thomas Speth, Timothy Strathmann, Hans Stroo, Timothy Thompson, Paul Tratnyek, Janice Willey

Cannabis Laboratory Quality Assurance Program: Exercise 2 Moisture Final Report

November 29, 2022
Author(s)
Chuck Barber, Colleen E. Bryan Sallee, Carolyn Burdette, Shaun Kotoski, Melissa M. Phillips, Walter Brent Wilson, Laura Wood
In 2020, NIST launched Cannabis Laboratory Quality Assurance Program (CannaQAP) to improve the comparability of the analytical measurements of cannabis and cannabis-derived products in forensic and cannabis (hemp and marijuana) testing laboratories

Method development for the determination of seven ginsenosides in three Panax Ginseng Standard Reference Materials via liquid chromatography with tandem mass spectrometry

October 18, 2022
Author(s)
Hugh Hayes, Walter Brent Wilson, Kate Rimmer
A new liquid chromatography-tandem mass spectrometry (LC–MS/MS) method was developed for the analysis of ginsenosides in three Panax ginseng reference materials (RMs). Extraction procedures were optimized to recover neutral and malonyl-ginsenosides using a

Mass Spectral Library Methods for Analysis of Site-Specific N-Glycosylation: Application to Human Milk Proteins

September 16, 2022
Author(s)
Concepcion Remoroza, Meghan Burke Harris, Xiaoyu (Sara) Yang, Sergey Sheetlin, Yuri Mirokhin, Sanford Markey, Dmitrii V. Tchekhovskoi, Stephen E. Stein
We present a mass-spectral library-based method for analyzing site-specific N-linked protein glycosylation. Its operation and utility are illustrated by applying it to both newly measured and available proteomics data of human milk glycoproteins. It

Overcoming Technological Barriers in Microfluidics: Leakage Testing

September 1, 2022
Author(s)
Vania Silverio, Suvajyoti Guha, Armelle Keiser, Rucha Natu, Darwin Reyes-Hernandez, Henne van Heeren, Nicolas Verplanck, Luke Herbertson
The miniaturization of laboratory procedures for Lab-on-Chip (LoC) devices and translation to various platforms such as single cell analysis or Organ-on-Chip (OoC) systems are revolutionizing the life sciences and biomedical fields. As a result

Levels and profiles of perfluorinated alkyl acids in liver tissues of birds with different habitat types and trophic levels from an urbanized coastal region of South Korea

August 1, 2022
Author(s)
Sang Hee Hong, Jessica L. Reiner, Mi Jang, Stacy Schuur, Gi Myung Han, John Kucklick, Won Joon Shim
Contamination status and characteristics of perfluorinated alkyl acids (PFAAs) including perfluorinated carboxylic acids (PFCAs) and perfluorinated sulfonic acids (PFSAs) was examined using liver tissue of birds - blacktailed gulls (Larus crassirostris)

Errors-in-variables calibration with dark uncertainty

June 16, 2022
Author(s)
Christina Cecelski, Blaza Toman, Fong-Ha Liu, Juris Meija, Antonio Possolo
A model for errors-in-variables regression is described that can be used to overcome the challenge posed by mutually inconsistent calibration data. The model and its implementation are illustrated in applications to the measurement of the amount fraction
Displaying 1 - 25 of 1929