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68 results found

Per- and polyfluoroalkyl substances (PFAS) Interferents List

Data provided by  National Institute of Standards and Technology

A table of known interferences for per- and polyfluoroalkyl substances using mass spectrometry.

Tags: per- and polyfluoroalkyl substances,PFAS,mass spectrometry,analytical chemistry,high-resolution mass spectrometry,HRMS,LC-MS/MS,

Modified: 2024-02-22

Views: 0

Database Infrastructure for Mass Spectrometry - Per- and Polyfluoroalkyl Substances

Data provided by  National Institute of Standards and Technology

Data here contain and describe an open-source structured query language (SQLite) portable database containing high resolution mass spectrometry data (MS1 and MS2) for per- and polyfluorinated alykl substances (PFAS) and associated metadata regarding their measurement techniques, quality assurance metrics, and the samples from which they were produced. These data are stored in a format adhering to the Database Infrastructure for Mass Spectrometry (DIMSpec) project. That project produces and uses databases like this one, providing a complete toolkit for non-targeted analysis.

Tags: per- and polyfluoroalkyl substances,PFAS,database,mass spectrometry,SQLite,emerging contaminants,high resolution mass spectrometry,non-targeted analysis,NTA,HRMS,

Modified: 2024-02-22

Views: 0

Microplastic and nanoplastic chemical characterization by thermal desorption and pyrolysis mass spectrometry with unsupervised machine learning

Data provided by  National Institute of Standards and Technology

This data publication contains the mass spectrometry chemical characterization of microplastic and nanoplastic chemical analysis. The data from this study includes mass spectra of pure, mixed, and weathered microplastics and nanoplastics at high and low fragmentation, extracted ion chronograms, Kendrick mass defect plots, code, and the derived and processed data. The data analysis code (MATLAB 2022a*) used for unsupervised learning of cluster and compositional relationships is also included.

Tags: Microplastic,Nanoplastics,environment,mass spectrometry,GC-MS,Chemical Characterization,machine learning,

Modified: 2024-02-22

Views: 0

XSLT Blender

Data provided by  National Institute of Standards and Technology

Demonstrations and utilities using XSLT in the web browser. XSLT 1.0 is supported with no dependencies on external libraries. Source code is in XML, XSLT, Javascript and Typescript.

Tags: xml,XSLT,client-side processing,document processing,declarative programming,

Modified: 2024-02-22

Views: 0

FCpy: Feldman-Cousins Confidence Interval Calculator

Data provided by  National Institute of Standards and Technology

Python scripts and Python+Qt graphical user interface for calculating Feldman-Cousins confidence intervals for low-count Poisson processes in the presence of a known background and for Gaussian processes with a physical lower limit of 0.

Tags: python,SIMS,statistics,mass spectrometry,Confidence Interval,CI,Feldman,Cousins,Poisson,Gaussian,

Modified: 2024-02-22

Views: 0

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: 2024-02-22

Views: 0

Cooperative Patent Classification (CPC) Master Classification File (MCF) for U.S. Patent Applications (2001 - Present)

Data provided by  United States Patent and Trademark Office

Contains Cooperative Patent Classification (CPC) classification information for all Utility patent applications published by the U.S. Patent and Trademark Office (USPTO) from 2001 to present. It is available as XML with schemas or text monthly (usually by the 15th of the month).

Tags: ascii,xml,uspto,patent application,cooperative,class,classification,subclass,subclassification,

Modified: 2024-02-22

Views: 0

Cooperative Patent Classification (CPC) Master Classification File (MCF) for U.S. Patent Grants (1790 - Present)

Data provided by  United States Patent and Trademark Office

Contains Cooperative Patent Classification (CPC) classification information for all Utility patent grants issued by the U.S. Patent and Trademark Office (USPTO) from 1790 to present. It is available as XML with schemas or text monthly (usually by the 15th of the month).

Tags: ascii,xml,uspto,patent,cooperative,class,classification,subclass,subclassification,

Modified: 2024-02-22

Views: 0

Patent Application Bibliographic Text (2001 - Present)

Data provided by  United States Patent and Trademark Office

Contains the bibliographic text (front page) of each patent application (non-provisional utility and plant) published weekly (Thursdays) from March 15, 2001 to present (excludes images/drawings). Subset of the Patent Application Full Text Data.

Tags: thursday,uspto,xml,patent application,bibliographic,front page,patent,pre-grant,publication,pgpubs,text,

Modified: 2024-02-22

Views: 0

Patent Application Full Text (2001 - Present)

Data provided by  United States Patent and Trademark Office

Contains the full text of each patent application (non-provisional utility and plant) published weekly (Thursdays) from March 15, 2001 to present (excludes images/drawings). Subset of the Patent Application Full Text Data with Embedded TIFF Images.

Tags: thursday,uspto,xml,patent application,full text,chemical structures,complex work units,tables,genetic sequence,mathematical expressions,patent,pre-grant,publication,pgpubs,text,

Modified: 2024-02-22

Views: 0