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Standards

Reference materials

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Displaying 51 - 75 of 528

Health Assessment Measurements Quality Assurance Program: Exercise 7 Final Report

December 5, 2022
Author(s)
Chuck Barber, Carolyn Burdette, Hugh Hayes, Monique Johnson, Shaun Kotoski, Jacolin Murray, Melissa M. Phillips, Kate Rimmer, Andrea Yarberry, Laura J. Wood
The Health Assessment Measurements Quality Assurance Program (HAMQAP) was launched in collaboration with the National Institutes of Health (NIH) Office of Dietary Supplements (ODS) in 2017. HAMQAP was established to enable laboratories to improve the

Semi-automated assembly of high-quality diploid human reference genomes

October 19, 2022
Author(s)
Erich Jarvis, Giulio Formenti, Jennifer McDaniel, Nathanael David Olson, Justin Wagner, Justin Zook, Kerstin Howe, Karen Miga
The current human reference genome, GRCh38, represents over 20 years of effort to generate a high-quality assembly, which has benefitted society. However, it still has many gaps and errors, and does not represent a biological genome as it is a blend of

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 Wilson, Catherine 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

The Digital NIST: Challenges And Opportunities in the Digital Transformation of NIST's Reference Materials

September 21, 2022
Author(s)
William Dinis Camara, Steven J. Choquette, Katya Delak, Robert Hanisch, Benjamin Long, Melissa M. Phillips, Jared Ragland, Kate Rimmer
Early in 2022 NIST embarked on a pilot project to produce digital calibration reports and digital certificates of analysis for reference materials. The goal of the project is to produce a few examples of digital reports and certificates for the purpose of

Report on the DHS/NIST Workshop on Standards for an Enduring Capability in Wastewater Surveillance for Public Health (SWWS Workshop)

August 16, 2022
Author(s)
Nancy Lin, Stephanie Servetas, Scott Jackson, Katrice Lippa, Kirsten Parratt, Philip Mattson, Clare Beahn, Mia Mattioli, Sally Gutierrez, Michael Focazio, Ted Smith, Paul Storella, Sarah Wright
Wastewater surveillance is a promising approach to monitor biological and chemical contaminants on a community level in support of public health and safety decisions. Wastewater surveillance has recently been shown highly effective for the early detection

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

Reference Material 8376 Microbial Pathogen DNA Standards for Detection and Identification

June 1, 2022
Author(s)
Jason Kralj, Dieter Tourlousse, Monique Hunter, Erica Romsos, Blaza Toman, Peter Vallone, Scott Jackson
Reference Material (RM) 8376 is intended for NGS-based measurements quantitative to the chromosome. A unit of RM 8376 consists of 20 components (A-T, 19 bacteria and 1 human) each containing well-characterized DNA in 10 mmol/L Tris-HCl, 1 mmol/L EDTA pH 8

Benchmarking challenging small variants with linked and long reads

May 11, 2022
Author(s)
Justin Wagner, Nathanael Olson, Lindsay Harris, Marc L. Salit, Fritz Sedlazeck, Chunlin Xiao, Justin Zook
Genome in a Bottle benchmarks are widely used to help validate clinical sequencing pipelines and develop variant calling and sequencing methods. Here we use accurate linked and long reads to expand benchmarks in 7 samples to include difficult-to-map

Certification of Standard Reference Material(R) 3655 Glycans in Solution (Frozen)

April 12, 2022
Author(s)
Mark Lowenthal, Blaza Toman, Brian Lang, Karen W. Phinney
Standard Reference Material (SRM) 3655 is intended primarily for use as a calibration standard for the measurement of enzymatically released N-linked glycans. Applications of SRM 3655 include the benchmarking and comparability of analytical techniques, as

Reference Materials for MS-based Untargeted Metabolomics and Lipidomics: A Review by the Metabolomics Quality Assurance and Quality Control Consortium (mQACC)

April 9, 2022
Author(s)
Katrice Lippa, William Davis, Christina Jones, Tracey Johnston, Juan Aristizabal-Henao, Richard Beger, John Bowden, Corey Broeckling, Chris Beecher, Warwick Dunn, Roberto Flores, Goncalo Gouveia, Thomas Hartung, Matthew Lewis, Ioanna Ntai, Andrew Percy, Dan Raftery, Jinchun Sun, Georgios Theodoridis, Fariba Tayyari, Federico Torta, Candice Ulmer, Baljit Ubhi
Introduction The metabolomics quality assurance and quality control consortium (mQACC) is enabling the identification, development, prioritization and promotion of suitable reference materials (RMs) to be used in quality assurance (QA) and quality control

A pyroelectric detector-based method for low uncertainty spectral irradiance and radiance responsivity calibrations in the infrared using tunable lasers

April 4, 2022
Author(s)
Brian Alberding, John Woodward, Ping-Shine Shaw, Leonard Hanssen, Catherine Cooksey, Joseph P. Rice
The standard uncertainty of detector-based radiance and irradiance responsivity calibrations in the short-wave infrared (SWIR) traditionally has been limited to around 1 % or higher by the low spatial uniformity of detectors used to transfer the scale from

A complete reference genome improves analysis of human genetic variation

April 1, 2022
Author(s)
Sergey Aganezov, Stephanie Yan, Daniela Soto, Melanie Kirsche, Samantha Zarate, Justin Wagner, Jennifer McDaniel, Nathanael David Olson, Rajiv McCoy, Megan Dennis, Justin Zook, Michael Schatz
Compared to its predecessors, the Telomere-to-Telomere CHM13 genome adds nearly 200 million base pairs of sequence, corrects thousands of structural errors, and unlocks the most complex regions of the human genome for clinical and functional study. We show

Models for an Ultraviolet-C Research and Development Consortium

March 25, 2022
Author(s)
Dianne L. Poster, C Cameron Miller, Yaw S. Obeng, John J. Kasianowicz, Michael T. Postek, Norman Horn, Troy Cowan, Richard Martinello
The development of an international, precompetitive, collaborative, ultraviolet (UV) research consortium is discussed as an opportunity to lay the groundwork for a new UV commercial industry and the supply chain to support this industry. History has

Certification of Standard Reference Material 3289 Multivitamin Tablets

March 18, 2022
Author(s)
Hugh Hayes, Jerome Mulloor, Michael Nelson, Kate Rimmer, Lee L. Yu, James H. Yen
Standard Reference Material® (SRM®) 3289 Multivitamin Tablets was developed as part of a collaborative effort between the National Institute for Standards and Technology (NIST) and the National Institutes of Health Office of Dietary Supplements (NIH ODS)

Certification of NIST Gas Mixture Standard Reference Materials

February 10, 2022
Author(s)
Christina Cecelski, Kimberly Harris, Cassie Goodman, William A. Kimes, Philip Liu, Walter R. Miller Jr., Jennifer Carney
The Gas Sensing Metrology Group at NIST provides accurate, stable gaseous standards for use in various types of emissions testing and environmental monitoring. The group develops and maintains the highest level of primary gas standards, which provide

Performance of NIST SRM(R) 2917 with 13 Recreational Water Quality Monitoring qPCR Assays

February 10, 2022
Author(s)
Jessica Willis, Mano Sivaganesan, Richard Haugland, Jason Kralj, Stephanie Servetas, Monique Hunter, Scott Jackson, Orin Shanks
Fecal pollution remains a significant challenge for recreational water quality management worldwide. In response, there is a growing interest in the use of real-time quantitative PCR (qPCR) methods to achieve same-day notification of recreational water

Curated variation benchmarks for challenging medically relevant autosomal genes

February 7, 2022
Author(s)
Justin Wagner, Nathanael David Olson, Lindsay Harris, Jennifer McDaniel, Fritz Sedlazeck, Chen-Shan Chin, Justin Zook
The repetitive nature and complexity of some medically relevant genes poses a challenge for their accurate analysis in a clinical setting. The Genome in a Bottle Consortium has provided variant benchmark sets, but these exclude nearly 400 medically

New reference materials for trace-levels of actinide elements in plutonium

January 27, 2022
Author(s)
Richard Essex, Lav Tandon, Amy Gaffney, Cole Hexel, Debbie Bostick, Lisa Colletti, Diana Decker, Casey Finstad, Joseph Giaquinito, Elmer Lujan, John Partridge, Benjamin Roach, John Rolinson, Kyle Samperton, Alice Slemmons, Khalil Spencer, Floyd Stanley, Lisa Townsend, Kerri Treinen, Ross Williams, Christopher Worley
Two plutonium oxides were prepared as unique reference materials for actinides occurring as trace constituents in Pu. Each reference material unit is approximately 200 mg of PuO2 in a quartz glass vial. Characterized attributes of the oxides included mass
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