{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11965864","patent":{"patent_number":"US-11965864","title":"Quantitative source apportionment based on nontarget high-resolution mass spectrometry (HRMS) data of pollution source and pollution receptor","assignee":null,"inventors":[],"filing_date":"2023-08-14T00:00:00.000Z","publication_date":"2024-04-23T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N","G01N","G01N"],"num_claims":5,"abstract":"A quantitative source apportionment method based on nontarget high-resolution mass spectrometry (HRMS) data of pollution sources and pollution receptors includes: acquiring samples of pollution sources and receptors, pre-processing samples to extract trace organic pollutants; acquiring chromatography-HRMS nontarget data; pre-processing raw data to obtain a HRMS dataset including a mass-to-charge ratio, a retention time, and a peak area; determining a source-sink relationship based on positions of pollution sources and receptors; constructing an input matrix by combining the HRMS dataset and using each sink as a group; adopting an expectation-maximization method or a Bayesian method to calculate contribution of each source based on a standardized input matrix. Beneficial effects at least include the follows. (1) The HRMS is used to acquire data to, information of the pollution source chemical fingerprint is rich and accurate; (2) contributions of different pollution sources to the receptor are quantitatively evaluated by using statistical algorithms."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Quantitative source apportionment based on nontarget high-resolution mass spectrometry (HRMS) data of pollution source and pollution receptor","description":"A quantitative source apportionment method based on nontarget high-resolution mass spectrometry (HRMS) data of pollution sources and pollution receptors includes: acquiring samples of pollution source","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11965864","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11965864","citation_suggestion":"Patentable. \"Quantitative source apportionment based on nontarget high-resolution mass spectrometry (HRMS) data of pollution source and pollution receptor\" (US-11965864). https://patentable.app/patents/US-11965864","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11965864","json":"https://patentable.app/api/llm-context/US-11965864","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T15:07:58.474Z"}