{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11287401","patent":{"patent_number":"US-11287401","title":"Sample pretreatment method of microextraction tube injection","assignee":null,"inventors":[],"filing_date":"2019-10-17T00:00:00.000Z","publication_date":"2022-03-29T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N","G01N","G01N","G01N","G01N","G01N","G01N"],"num_claims":4,"abstract":"Disclosed is a sample pretreatment method of microextraction tube injection, comprising providing a capillary micro-extraction tube with extracting medium in it as an injector, passing a sample through the capillary micro-extraction tube, during which an analyte is extracted into an extracting medium inside the capillary micro-extraction tube; then, filling the capillary micro-extraction tube with an organic solvent and keeping the filling for a certain period of time, so that the extracted analyte is dissolved in the organic solvent inside the capillary micro-extraction tube to form an injection solution; finally, keeping one end of the capillary micro-extraction tube sealed and inserting the other end directly into an injection port of a gas chromatography, such that the injection solution is automatically ejected out from the capillary micro-extraction tube into the injection port."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Sample pretreatment method of microextraction tube injection","description":"Disclosed is a sample pretreatment method of microextraction tube injection, comprising providing a capillary micro-extraction tube with extracting medium in it as an injector, passing a sample throug","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11287401","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-11287401","citation_suggestion":"Patentable. \"Sample pretreatment method of microextraction tube injection\" (US-11287401). https://patentable.app/patents/US-11287401","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11287401","json":"https://patentable.app/api/llm-context/US-11287401","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T18:25:33.240Z"}