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30 results found

Supplemental Data and Source Code for ILSA Research

Data provided by  National Institute of Standards and Technology

Source code associated with the Inverted Library Search Algorithm (ILSA) for identifying mixture components using is-CID mass spectra. This source code is frozen to accompany the manuscript titled "Updates to the Inverted Library Search Algorithm for mixture analysis" by Moorthy et. al.

Tags: mass spectrometry,Mixture Analysis,Search Algorithms,seized drug analysis,

Modified: 2022-07-29

Views: 0

Aggregation of Purified Protein Reference Materials Characterized by Asymmetric Flow Field Flow Fractionation

Data provided by  National Institute of Standards and Technology

This is a file containing aggregation data for two proteins that were thermomechanically aggregated. The aggregated proteins were separated by asymmetric flow field flow fractionation and separated protein fractions were detected and quantified by UV spectrophotometry and multi-angle light scattering. The UV spectrophotometry was used to quantify the amount of residual monomer, which is reported herein. The multi-angle light scattering was fitted to a relevant model to calculate the molecular weight of the aggregated protein, also reported herein.

Tags: electrical sensing zone,flow imaging,light obscuration,particle,protein aggregate,protein particle,subvisible particle,visible particle,Biosciences and Health,

Modified: 2022-07-29

Views: 0

Development of a Tool to Determine the Variability of Consensus Mass Spectra Supporting Data

Data provided by  National Institute of Standards and Technology

Supporting datasets and algorithms (R-based) for the manuscript entitled "Development of a Tool to Determine the Variability of Consensus Mass Spectra", including an R Markdown script to reproduce the manuscript's figures.

Tags: mass spectrometry,uncertainty analysis,per- and polyfluoroalkyl substances,PFAS,reference mass spectrum,

Modified: 2022-07-29

Views: 0

NIST DART-MS Forensics Database (is-CID)

Data provided by  National Institute of Standards and Technology

The NIST DART-MS Forensics Database is an evaluated collection of in-source collisionally-induced dissociation (is-CID) mass spectra of compounds of interest to the forensics community (e.g. seized drugs, cutting agents, etc.). The is-CID mass spectra were collected using Direct Analysis in Real-Time (DART) Mass Spectrometry (MS), either by NIST scientists or by contributing agencies noted per compound. The database is provided as a general-purpose structure data file (.SDF).

Tags: Standard reference data,mass spectra,Ion Fragmentation,mass spectrometry,NIST Mass Spectral Libraries,Chemical Identification,Biosciences and Health,Security and Forensics,

Modified: 2022-07-29

Views: 0

Datasets from an interlaboratory comparison to characterize a multi-modal polydisperse sub-micrometer bead dispersion

Data provided by  National Institute of Standards and Technology

These four data files contain datasets from an interlaboratory comparison that characterized a polydisperse five-population bead dispersion in water. A more detailed version of this description is available in the ReadMe file (PdP-ILC_datasets_ReadMe_v1.txt), which also includes definitions of abbreviations used in the data files. Paired samples were evaluated, so the datasets are organized as pairs associated with a randomly assigned laboratory number.

Tags: Biosciences and Health,particle,protein particle,sub-micrometer particle,subvisible particle,particle tracking analysis,resonant mass measurement,electrical sensing zone,holographic particle characterization,flow imaging,laser diffraction,flow cytometry,

Modified: 2022-07-29

Views: 0

Dataset from HDX-MS Studies of IgG1 Glycoforms and Their Interactions with the Fc(gamma)RIa (CD64) Receptor

Data provided by  National Institute of Standards and Technology

This database gives hydrogen-deuterium exchange mass spectrometry (HDX-MS) data from measurements of three purified IgG1 glycoform samples, predominantly G0F, G2F, and SAF, in isolation and in complexation with the high-affinity receptor, Fc(gamma)RIa (CD64). The IgG1 antibody used in this study, aIL8hFc, is a murine-human chimeric IgG1, which inhibits IL-8 binding to human neutrophils.

Tags: antibody-receptor interaction,chromatography,HDX-MS,hydrogen-deuterium exchange,glycosylation,mass spectrometry,monoclonal antibody,precision,peptide,protein,proteolysis,proteomics,receptor.,

Modified: 2022-07-29

Views: 0

SRM 2969 Vitamin D Metabolites in Frozen Human Serum (Total 25-Hydroxyvitamin D Low Level) Data

Data provided by  National Institute of Standards and Technology

SRM 2969 Electronic files containing certified values and their uncertainties, and the data used to assign those values

Tags: vitamin D,25-hydroxyvitamin D,serum,mass spectrometry,

Modified: 2022-07-29

Views: 0

SRM 2970 Vitamin D Metabolites in Frozen Human Serum (25-Hydroxyvitamin D2 High Level) Data

Data provided by  National Institute of Standards and Technology

Electronic files containing certified values and their uncertainties, and the data used to assign those values.

Tags: vitamin D,25-hydroxyvitamin D,serum,mass spectrometry,

Modified: 2022-07-29

Views: 0

Datasets from an interlaboratory comparison to characterize a multi-modal polydisperse sub-micrometer bead dispersion

Data provided by  National Institute of Standards and Technology

These four data files contain datasets from an interlaboratory comparison that characterized a polydisperse five-population bead dispersion in water. A more detailed version of this description is available in the ReadMe file (PdP-ILC_datasets_ReadMe_v1.txt), which also includes definitions of abbreviations used in the data files. Paired samples were evaluated, so the datasets are organized as pairs associated with a randomly assigned laboratory number.

Tags: Biosciences and Health,particle,protein particle,sub-micrometer particle,subvisible particle,particle tracking analysis,resonant mass measurement,electrical sensing zone,holographic particle characterization,flow imaging,laser diffraction,flow cytometry,

Modified: 2022-07-29

Views: 0

Hydrogen-Deuterium Exchange Mass Spectrometry (HDX-MS) Centroid Data measured between 3.6 degrees C and 25.4 degrees C for the Fab Fragment of NISTmAb

Data provided by  National Institute of Standards and Technology

The spreadsheet file reported herein provides centroid data, descriptive of deuterium uptake, for the Fab Fragment of NISTmAb (PDB: 5K8A) reference material, as measured by the bottom-up hydrogen-deuterium exchange mass spectrometry (HDX-MS) method. The protein sample was incubated in deuterium-rich solutions under uniform pH and salt concentrations between 3.6 degrees C and 25.4 degrees C for seven intervals ranging (0 to 14,400) s plus a control sample that simulates a Fab Fragment immersed for infinite time in D2O.

Tags: hydrogen-deuterium exchange,hydrogen exchange,HDX-MS,interlaboratory comparison,mass spectrometry,peptide,precision,proteomics,reference material,repeatability,reproducibility,

Modified: 2022-07-29

Views: 0