{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11307123","patent":{"patent_number":"US-11307123","title":"Method for analyzing stable isotopes of particulate organic carbon (POC) and nitrogen in seawater using elemental analysis-isotope ratio mass spectrometry (EA-IRMS)","assignee":null,"inventors":[],"filing_date":"2021-10-19T00:00:00.000Z","publication_date":"2022-04-19T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N","G01N","G01N"],"num_claims":1,"abstract":"A method for analyzing stable isotopes of particulate organic carbon (POC) and nitrogen in seawater using elemental analysis-isotope ratio mass spectrometry (EA-IRMS), including: using a glass fiber filter membrane to filter a collected water sample and then filter 100 ml of distilled water; subjecting a resulting membrane sample to acidification; and subjecting an acidified membrane sample to EA-IRMS analysis on a machine, where an oxygen addition time is set to 80 s and a combustion tube temperature is set to 700° C. for an elemental analyzer, and a trap current is set to 300 μA to 400 μA for an isotope ratio mass spectrometer. The method of the present disclosure can reduce a detection cost and improve the data accuracy and work efficiency."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for analyzing stable isotopes of particulate organic carbon (POC) and nitrogen in seawater using elemental analysis-isotope ratio mass spectrometry (EA-IRMS)","description":"A method for analyzing stable isotopes of particulate organic carbon (POC) and nitrogen in seawater using elemental analysis-isotope ratio mass spectrometry (EA-IRMS), including: using a glass fiber f","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11307123","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-11307123","citation_suggestion":"Patentable. \"Method for analyzing stable isotopes of particulate organic carbon (POC) and nitrogen in seawater using elemental analysis-isotope ratio mass spectrometry (EA-IRMS)\" (US-11307123). https://patentable.app/patents/US-11307123","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11307123","json":"https://patentable.app/api/llm-context/US-11307123","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T21:23:04.347Z"}