{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9702857","patent":{"patent_number":"US-9702857","title":"Analysis reagents and method","assignee":null,"inventors":[],"filing_date":"2011-05-04T00:00:00.000Z","publication_date":"2017-07-11T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N"],"num_claims":18,"abstract":"The invention provides a single colorimetric reagent for the measurement of oxidizing agents such as free chlorine in a liquid sample which contains a food dye, whereby the oxidizing agent undergoes a reaction with said food dye. A preferred food dye is Brilliant Blue FCF. There is also provided a control system for regulating the volume of reagent added to a fixed volume of sample according to a control algorithm to give a chosen excess of a reagent compound beyond that required to stoichiometrically react with the target analyte in the sample. Also disclosed are single reagents for colorimetric determination of total alkalinity and calcium hardness."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Analysis reagents and method","description":"The invention provides a single colorimetric reagent for the measurement of oxidizing agents such as free chlorine in a liquid sample which contains a food dye, whereby the oxidizing agent undergoes a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9702857","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-9702857","citation_suggestion":"Patentable. \"Analysis reagents and method\" (US-9702857). https://patentable.app/patents/US-9702857","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9702857","json":"https://patentable.app/api/llm-context/US-9702857","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:37:37.313Z"}