{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["006:55"], "contactPoint": {"fn": "Edward Sisco", "hasEmail": "mailto:edward.sisco@nist.gov"}, "description": "This dataset contains replicate extracted mass spectra of 330+ drug standards collected using gas chromatography electron ionization mass spectrometry (GC-EI-MS). There are ten replicate mass spectra for each compound - five spectra collected on two different instruments - in .csv files. Also included are pdf's of mass spectral heat maps for each compound. See the readme file for more information.", "distribution": [{"description": "A zipped folder containing all mass spectra (.csv file format) and mass spectral heat maps (.pdf file format). See the Readme.docx file for more information and for information on file naming structure.", "downloadURL": "https://data.nist.gov/od/ds/mds2-4060/SpectraAndFigures.zip", "mediaType": "application/x-zip-compressed", "title": "Spectra and Heatmaps"}, {"description": "Detailed information on the contents and file naming structure within the attached zipped folder.", "downloadURL": "https://data.nist.gov/od/ds/mds2-4060/ReadMe.docx", "mediaType": "application/vnd.openxmlformats-officedocument.wordprocessingml.document", "title": "File structure and contents information"}], "identifier": "ark:/88434/mds2-4060", "issued": "2026-04-30", "keyword": ["Drugs", "GC-MS", "Mass Spectra"], "landingPage": "https://data.nist.gov/od/id/mds2-4060", "language": ["en"], "license": "https://www.nist.gov/open/license", "modified": "2026-04-20 00:00:00", "programCode": ["006:045"], "publisher": {"@type": "org:Organization", "name": "National Institute of Standards and Technology"}, "theme": ["Forensics:Drugs and toxicology"], "title": "Replicate Gas Chromatography Mass Spectrometry Data of Seized Drug Standards"}